On a chess.com thread asking whether the King's Indian Defense is any good for beginners, GreedyPawnGrabber does not hedge: "It's terrible for beginners. It is opening for advanced players. Slav and QG Accepted are better." A few replies down, varelse1 disagrees just as flatly: "KID is a great opening, at any level. Sure, the positions can be sharp." Both posters are describing the exact same opening, on the exact same thread, and neither one budges.
Our own Maia3 data cannot settle who is right about difficulty. What it can do is show something neither side of that argument is talking about: real players get more certain about entering this opening's main tabiya as rating rises, and then, one move later, get less certain than ever about which King's Indian to actually play. At 2200, White's fifth move is a genuine four way split. Nothing commands even a quarter of the field.
The players who never make you prove any of this
Before any number below matters, there is a harder question worth asking honestly: how often does a club game actually reach the position this article measures at all. A meaningful slice of 1.d4 players never offer it. The Trompowsky Attack, 1.d4 Nf6 2.Bg5, exists for exactly this reason, and Wikipedia says so directly: "By playing 2.Bg5, White sidesteps immense bodies of opening theory of various Indian Defences like the Queen's Indian, King's Indian, Nimzo-Indian, as well as the Grunfeld Defence." The London System, 1.d4 Nf6 2.Bf4, is the more common dodge in practice, and per chessgoals.com, read in September 2026, the King's Indian setup is specifically the reply White meets most from it: "More than half of all games enter this position. You are more likely to see the KID than the Grunfeld, Queen's Indian Defense and Benoni combined." Black can make the same choice in reverse: after 1.d4 Nf6 2.c4 c5 3.d5, some players give a pawn with 3...b5 instead, and the Benko Gambit page measures how club players answer it. The Fianchetto Variation, ECO E62 through E69, sidesteps the fight a different way, holding back e2 to e4 permanently so White never even faces the 4.e4 decision our data measures. And plenty of 1.d4 players simply play 1.e4 instead.
Here is the genuine complication: there is no clean sourced figure anywhere for what fraction of club games versus 1...Nf6 and 2...g6 actually reach 3.Nc3 and 4.e4. We looked. It is not out there. The best proxy we found runs opposite to the intuitive story. Firechess.com's 1.5 million game Lichess analysis, as read in September 2026, shows the London System, the single most cited King's Indian dodge, getting less common as rating climbs, not more: 4.8 percent of games under 1400, easing to 4.2 percent between 1400 and 1800, and down to 3.5 percent at 1800 and above. By that one metric, sidestepping into the London is a habit that fades with rating rather than one that grows with it. Chessgoals.com's claim that the King's Indian is the London's single most common answer measures a different thing entirely, frequency within London games specifically, not how often club players choose the London in the first place, and we are not going to average two different measurements into one tidier number than the evidence actually supports. They happen to point the same direction. That is worth saying. It is not the same as one proving the other.
We measured this the same way as every opening in our chess openings by rating dataset: the maia3-5m checkpoint queried at seven self-elo bands from 1000 to 2200, graded by Stockfish 18 at depth 20 with MultiPV set to the exact legal move count of each position. For the mechanics of the model itself, how Maia chess actually works owns that explanation; here we just apply it to two specific King's Indian positions.
Move four: White gets more sure, not less
After 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7, White has 33 legal moves. Stockfish's top choice is 4.e4 at +0.59, the move that actually enters the King's Indian tabiya. Maia3's probability that a human White player finds it climbs sharply from 1000 to 2200, but not in a straight line:
| Rating | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 |
|---|---|---|---|---|---|---|---|
| Probability of 4.e4 | 44.3% | 42.3% | 43.1% | 47.2% | 55.4% | 67.8% | 80.2% |
| Probability of 4.Nf3 | 26.2% | 28.0% | 27.2% | 25.1% | 21.5% | 16.3% | 11.3% |
Look closely at the first three columns. e4's popularity actually dips from 44.3 percent at 1000 to 42.3 percent at 1200, before recovering to 43.1 percent at 1400 and only then climbing hard. That is a real dip, not noise we are smoothing over: a 1200 rated White player is slightly less likely to grab the main line than a 1000 rated one is, and it is not until 1600 that e4's popularity clears its own starting point for good. From there the climb is real and fast, reaching 80.2 percent by 2200. The main alternative, 4.Nf3, runs the opposite way across the same stretch, sliding from 26.2 percent down to 11.3 percent. The rest of the field never threatens either leader: 4.Bg5 peaks at 11.6 percent at 1400 before fading to 2.3 percent by 2200, 4.e3 peaks early at 9.1 percent at 1000 and drops out of the top five entirely by 2200, 4.Bf4 stays a flat 6 to 6.6 percent through most bands before easing to 1.6 percent, and 4.g3 barely registers until 2200, where it takes 2.4 percent. At every single one of the seven bands, e4 is already both Stockfish's best move and the crowd's most popular one, so the eval gap, the size of the difference between the engine's favorite and the human favorite, reads exactly zero the whole way through. Higher rated players are not finding a different, better move. They are converging harder on the same one White always preferred.
Move five: the split that never resolves
One move later, after 4.e4 d6, White has 40 legal moves, and this is where the King's Indian actually starts. Stockfish's top choice is 5.Nf3 at +0.68, the move into the Classical, also called the Mar del Plata once Black replies 7...Nc6 8.d5 Ne7, ECO E90 through E99. Four other named systems live in the same top five across our seven bands: 5.f3, the Saemisch, E80 through E89; 5.Be2, the first move of the Averbakh, E74 through E75, though the line only earns that name properly once White follows up with 6.Bg5; 5.f4, the Four Pawns Attack, E76 through E79; and 5.h3, the Makogonov.
| Rating | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 |
|---|---|---|---|---|---|---|---|
| 5.Nf3, Classical / Mar del Plata | 45.7% | 47.3% | 45.5% | 40.1% | 31.4% | 24.8% | 23.8% |
| 5.f3, Saemisch | outside top 5 | outside top 5 | outside top 5 | outside top 5 | 9.6% | 17.1% | 22.4% |
| 5.Be2, Averbakh | outside top 5 | outside top 5 | outside top 5 | outside top 5 | outside top 5 | 10.2% | 19.0% |
| 5.f4, Four Pawns Attack | outside top 5 | 7.2% | 10.0% | 14.4% | 19.7% | 20.3% | 14.6% |
| 5.h3, Makogonov | outside top 5 | outside top 5 | 5.3% | 6.2% | 6.5% | outside top 5 | 9.0% |
A move marked "outside top 5" did not vanish. It simply did not rank among that band's five most probable tries; Maia3 still assigns it some nonzero probability. One move left off the table is worth naming for exactly that reason: 5.Bd3, a plain developing move with no variation named after it, holds between 6.3 and 11.9 percent from 1000 through 2000, and at 1800 it is the third most likely try on the board. It falls out of the top five only by 2200. We left it out of the table because it is not one of the named systems this section is about, not because it is rare. What the table shows plainly is a field pulling apart, not together. Nf3 opens with a commanding 45.7 percent lead at 1000 and closes at just 23.8 percent by 2200, its worst showing anywhere on the table. f3 does not even appear in the top five until 1800, then rockets to second place, 22.4 percent, by 2200. Be2 is even later to the party, absent until 2000, then 19.0 percent by 2200. f4 peaks in the middle of the range, 20.3 percent at 2000, and then eases back to 14.6 percent, its own small non-monotone wrinkle. h3 is the strangest of the five: present from 1400 through 1800, it drops entirely out of the top five at 2000, then jumps back to 9.0 percent at 2200. By 2200, four separate named systems all sit within striking distance of each other: 23.8, 22.4, 19.0 and 14.6 percent, with h3's 9.0 percent still very much in the picture. Nothing at that band commands even a quarter of the field.
Two things stop this from reading as strong players losing the plot. First, Nf3 is the single most probable move at every one of the seven bands and also Stockfish's own top choice at +0.68, so the eval gap reads zero the whole way through, exactly like Position A: nobody drifts toward a worse move as rating rises. Second, the four systems splitting the vote are all reasonable by engine standards, Stockfish scores f4 at +0.21, Be2 at +0.55, f3 at +0.44 and Nf3 at +0.68, a spread of under half a pawn. What changes with rating is not whether a strong player finds a good move. It is that strong players stop agreeing on which good move to pick.
The one move in this table that is not reasonable belongs almost entirely to the lowest band. 5.e5, at negative 1.11, costs roughly 1.8 pawns against the engine's own +0.68 for Nf3. It shows up at 9.2 percent at 1000, fades to 5.5 percent by 1200, and is gone from the top five entirely by 1400. That is the pattern worth remembering: the genuinely bad option here is a 1000 rated habit that disappears with rating, while the field's real disagreement one move deep is entirely among moves the engine considers sound.
Averaged across both positions, overall findability slides gently from 45.0 percent at 1000 down to 43.4 percent at 1800, then jumps to 46.3 at 2000 and 52.0 at 2200. A single blended number like that would hide the real finding: one position converging hard, the other diverging just as hard, at the same time.
Five systems, one board
Each of the four main tries carries real theory behind it, not just an engine score. The Saemisch, named after German grandmaster Friedrich Saemisch, is described on Wikipedia as "a subtle blockading system and a critical challenge to the King's Indian," and it has been played by six world champions: Botvinnik, Tal, Petrosian, Spassky, Karpov and Kasparov. Bobby Fischer specifically struggled against it and would avoid the King's Indian when he expected to face it; in his 1992 rematch against Spassky he still met it five times, scoring two wins, two draws and one loss. GM Eduard Gufeld summed up the line's bite in one sentence: "Ask the king's knight what it thinks of 5.f3."
The Four Pawns Attack grabs the most central space of any try on the board, building a pawn front across c4, d4, e4 and f4, but Wikipedia is blunt about its standing: "this formation has never attracted serious interest in high-level play." Alexander Alekhine still used it three times at the 1924 New York tournament, scoring one win and two draws, and Bent Larsen experimented with it occasionally decades later. The Averbakh Variation develops the bishop to g5 after 5.Be2 O-O 6.Bg5 specifically to discourage Black's thematic ...e5 break while keeping White's own castling plans flexible.
The Classical branch, where our data's own leading move points, has real numbers behind it too, separate from anything Maia3 measures. Chess.com's own opening explorer, read in September 2026 and drawing on over 54,000 master games, reports the Main Line, 5.Nf3 O-O 6.Be2, scoring White 42 percent, drawing 30 percent and losing just 28 percent. The Makogonov specifically, 5.h3, scores even better for White across roughly 5,000 master games: 51 percent wins, 24 percent draws, 25 percent losses. Both are live databases that keep growing, so treat those splits as a snapshot rather than a fixed number. That is a different kind of evidence from our own findability numbers, real game outcomes rather than move probabilities, and it happens to back up why h3 is worth taking seriously even at 9.0 percent of the vote rather than dismissing it as a rare oddity.
Kasparov, Kramnik, and a story that got simplified
The name itself is younger than the opening. Per Wikipedia, "Indian Defence" first appeared in 1884, and "King's Indian Defence" only arose in the mid twentieth century, credited to Hans Kmoch. Until the mid 1930s the opening was "generally regarded as highly suspect," until three strong Soviet players, Alexander Konstantinopolsky, Isaac Boleslavsky and David Bronstein, helped make it "much more respected and popular." Kasparov, Fischer and Mikhail Tal championed it after that, and Viktor Korchnoi, Miguel Najdorf, Efim Geller, John Nunn, Svetozar Gligoric and Ilya Smirin extended its theory.
Then, per Wikipedia, its popularity took a real hit in the early 2000s once Vladimir Kramnik began scoring excellently against it, "so much so that Kasparov gave up the opening after several critical losses to Kramnik." Asked by Lev Psakhis directly why he had stopped, Kasparov answered that to play the King's Indian daily, finding resources where the position looks gloomy for Black, takes "kharosh," a Russian word ChessBase translates as "inspired guts." During the 2000 World Championship match, Kasparov abandoned it entirely and reverted to the Gruenfeld Defence with Black instead.
Here is where the popular version of this story oversimplifies, and it is worth correcting rather than repeating. Several secondary sources claim Kramnik beat Kasparov specifically with the Bayonet Attack, 9.b4 in the Classical main line: chess.com's own Bayonet Attack page says the move was popularized "most notably" by Kramnik, "who used it successfully against the great Garry Kasparov." Wikipedia's King's Indian Defence article says something different: it credits the Bayonet Attack's introduction to Korchnoi in the 1970s and its recent revival to Radjabov, with no Kramnik attribution at all. A dedicated modern-chess.com repertoire page on the Bayonet Attack goes further, listing Kramnik only as a follower of one specific 10.g3 sub-line, alongside Gelfand and Van Wely, never mentioning Kasparov once. Kasparov's abandonment of the King's Indian is real and well documented. Tying it specifically to 9.b4, rather than to Kramnik's results against the opening in general, is a popular simplification the primary sources do not actually support.
The opening did not stay abandoned. Teimour Radjabov is credited with reviving it after Kasparov walked away, and the record backs that up: over 200 games with it across the last 20 years, beating, per one account, "just about every top player in the world with this opening, be it Carlsen, Ivanchuk, Mamedyarov, Gelfand or whoever it is." As of September 2026, Nakamura, Radjabov and Ding Liren were all still named as active practitioners, and Kramnik himself went on to win a game on the black side of it in 2012.
What to actually do at your rating
Under 1400, do not read too much into which named system you are drifting toward. White's own confidence about entering the main line is genuinely shaky here, dipping between 1000 and 1200 before it recovers, and the fifth move fragments the least at these bands because f3, Be2 and h3 are barely present yet. Learn the basic shape, pawns on g6 and d6, a knight on f6, a bishop on g7, and worry about named systems later.
Between 1400 and 2000, both curves move fast at once. e4's popularity climbs from 43.1 to 67.8 percent, so more opponents are committing to the main line than ever, and f3, Be2 and h3 are all entering the picture for the first time. This is the window worth actually studying named systems in, since the odds your opponent knows the Saemisch cold, rather than defaulting to the Classical out of habit, are rising fast. If you would rather understand the ideas behind a system than memorize its move order, that is exactly the approach in stop memorizing openings and learn the plan instead.
Past 2000, expect genuine unpredictability on White's fifth move, even though White is now more committed than ever to reaching the position at all. Four systems are realistically on the table, and the data does not let you prepare for just one. To check which of these five tries your own last King's Indian game actually walked into, and whether you found the engine's reply, Chessdrive's chess analysis board will tell you directly.
What this data is, and is not
Maia3 predicts what a human at a chosen rating is likely to play. It is not a tally of real games, and its own project description says as much, describing it as reproducing "common human biases" and making "many of the same mistakes that humans make." Every percentage above is a validated model of human tendency, not a box score.
The narrower limit matters just as much here. This dataset measures exactly two positions: the tabiya after 3...Bg7, and the one move later after 4.e4 d6. It says nothing about the Fianchetto Variation, the Trompowsky, the London or any other way White avoids reaching either position, and nothing about what happens after move five inside any of the five named systems it covers. Our own Caro-Kann Defense findability data found a reversal of a genuinely different shape, and the contrast is the point: there the likeliest human move actually changes identity partway up the rating range, one named main line crossing over another, while here the leading move never loses its place and simply loses its share of the vote. Two openings can both come apart with rating and come apart in ways that ask different things of you, which is one reason this page stands on its own rather than folding into a single general article.
Where the King's Indian genuinely loses the argument
None of the above should read as a blanket endorsement. On the same beginner thread quoted at the top of this piece, Expertise87 puts the risk in blunt terms: "Playing the KID without understanding chess is like jumping in the deep end and dying several hundred times before figuring out how to swim." On a separate thread asking whether the opening is complex or simple, ThrillerFan, who plays it regularly as a 2000 rated player, insists "it is absolutely NOT a simple opening at all," and Morfizera doubts any player rated under 1000 gets past five moves of real theory. Even a historical popularizer of the opening reportedly had doubts about it: on a chess.com thread, poster tygxc relays David Bronstein as having said the King's Indian "is riskier for black than King's Gambit for white," though that attribution comes from a forum post rather than a verified primary source.
The practical objection is the theory burden, and it is not exaggerated. A club player who reaches move fifteen or twenty in a Saemisch or a Classical against a prepared opponent, without having studied that specific system, is playing from memory against preparation, close to the worst position to be in. If maximum winning chances with the least memorization matters more to you than this opening's imbalance, we have run this exact measurement on another option already: our own Sicilian Defense breakdown covers a completely different fork, one that stays a near coin flip well past the rating where the King's Indian's own fifth move has already fractured four ways. Our data settles which move your opponent is likely to find. It does not settle which opening is right for you to meet it with. If you like this structure but would rather reach it after 1...f5, the Leningrad system on our Dutch Defense page uses the same fianchetto and ...d6 setup.
Frequently asked
- Is the King's Indian Defense good for beginners?
- Real players who have tried it disagree completely, in the same thread. On a chess.com thread titled 'How good is the Kings Indian for beginners?', GreedyPawnGrabber states flatly: 'It's terrible for beginners. It is opening for advanced players. Slav and QG Accepted are better.' Expertise87 goes further: 'Playing the KID without understanding chess is like jumping in the deep end and dying several hundred times before figuring out how to swim.' Other posters on the same thread push back hard. varelse1 counters: 'KID is a great opening, at any level. Sure, the positions can be sharp.' PIRATCH adds: 'Fischer and Kasparov proved that KID can be used on highest level! Why not for beginners as long as you try to understand the ideas.' waffllemaster lands in between: 'I find the KID confusing. Structures/plans you think wouldn't really work end up working due to concrete play.' There is no consensus among the people who actually play it, and that split is the honest answer.
- What is the difference between the King's Indian Defense and the King's Indian Attack?
- They share a name and almost nothing else. The King's Indian Defense is what this entire article measures: a Black system starting 1.d4 Nf6 2.c4 g6, ECO codes E60 through E99. The King's Indian Attack, ECO codes A07 through A08, is a different White system built around e4, d3, Nd2, Ngf3, g3, Bg2 and O-O, playable via 1.e4 or as a universal try starting 1.Nf3. Wikipedia notes the King's Indian Attack originally grew as an offshoot from the King's Indian Defense's own popularity in the 1950s, and that it stays uncommon at grandmaster level today while remaining popular at club level for its repeatable middlegame plans. Bobby Fischer is the most cited crossover figure between the two: a leading King's Indian Defense practitioner as Black who also, per Wikipedia, 'made the King's Indian Attack famous' and 'scored spectacular victories' with it as White early in his career. To be direct about the one thing that actually matters here: every number in this article measures the Defense. None of it covers the Attack, and the two should not be confused just because they share three of their four words.
- Which King's Indian system will I actually face, the Classical, the Saemisch, the Averbakh or the Four Pawns Attack?
- Depends entirely on your opponent's rating, and even at the top of our data it is not settled. Our own findability numbers, covered in full above, show 5.Nf3 (the Classical, heading toward the Mar del Plata) as the single most likely try at every band we measured, but its lead shrinks from 45.7 percent at 1000 down to 23.8 percent at 2200. By 2200, 5.f3 (the Saemisch) sits at 22.4 percent, 5.Be2 (the first move of the Averbakh) at 19.0 percent, 5.f4 (the Four Pawns Attack) at 14.6 percent, and 5.h3 (the Makogonov) at 9.0 percent. Nothing at that band commands even a quarter of the field. The honest answer for a club player is: expect the Classical more than anything else, but do not assume it, and do not assume your opponent knows only one plan against you.
- Is the King's Indian too much theory for a 1000 rated player?
- Opinion splits sharply, again inside a single thread. On the 'Kings Indian, Complex or Simple?' chess.com thread, ThrillerFan, a self-described 2000 rated over-the-board player who plays the King's Indian regularly as Black, states 'it is absolutely NOT a simple opening at all! There is a TON of theory, and many different pawn structures.' Morfizera separately estimates 'I honestly doubt that <1000 would get past 5 moves of theory.' A third poster, aanval22, offers a middle view worth taking seriously: 'King's Indian is an extremely complex opening at a high level. However, at lower levels, it might be a simpler opening.' Our own data actually supports that middle view in one narrow sense: at 1000, White's own confidence in the main line is itself weaker (44.3 percent for 4.e4), so a 1000 rated King's Indian player is facing a less committed, less theory-heavy opponent than a 2200 rated one would.
- Has the King's Indian been refuted by Stockfish?
- No, and the players arguing about it on chess.com generally agree on why. TheNumberTwenty writes 'KID is one of the best openings even at the grandmaster level for creating imbalances' and 'I promise you it's fantastic against 99.99 percent of players. Good and easy system,' while separately noting that an engine eval 'doesn't mean an opening is refuted.' Vegosiux frames the actual standard plainly: 'There is only one way to refute an opening, and that's playing against it and winning the game.' Optimissed goes further, arguing engines undervalue the kind of position the King's Indian creates: 'Stockfish is useless at positional assessments. It's best at endings. Openings are all positional, after all, so it can't assess them.' Nothing in our own dataset contradicts that. Every single most likely human move in both positions we measured is also Stockfish's own top choice, at every rating band, which is the opposite of what a refuted opening would look like.
- Can the London System or the Colle System let me avoid facing the King's Indian?
- Partly, and the sourcing here is messier than it looks at first. Chessgoals.com claims the King's Indian setup is genuinely the London's single most common reply, 'more than half of all games enter this position,' but Firechess.com's 1.5 million game analysis shows the London itself getting rarer as rating climbs, from 4.8 percent of games under 1400 down to 3.5 percent at 1800 and above. Those are different measurements pointing the same direction rather than one proving the other, and neither tells you how often 3.Nc3 and 4.e4 specifically get reached. The Colle System is not a reliable sidestep either: on a chess.com Colle thread, ThrillerFan says it 'sucks against fianchetto defenses,' while lb0301 reports the opposite from practical experience: 'colle is good against fianchetto g6, since when not in form, i play it, and often get good positions/or playable positions.' And one popular claim about the London's own history does not hold up: a chess.com forum poster calls it a 1920s tool built specifically to dodge the King's Indian, but Wikipedia's own London System article traces the opening to James Mason playing it from 1882 and to the 1922 London tournament, with no anti-King's Indian motive stated anywhere.
Want to see your own rating's version of this split?
Chessdrive runs the real maia3-5m checkpoint on-device as your opponent at any rating you set from 600 to 2600, then reviews the finished game separately with Stockfish. Set the opponent to your own number and watch which of the five named systems it actually reaches for before you ever face it against a person. Free trial to start, on iOS and Android.