Quite simply, is this the longest possible series of consecutive captures in a legally reachable, legal game? I composed this particular party myself.

[FEN "q1kr2q1/1qnqnb2/2prp3/q2pK3/2P1P3/1QNQNB2/Q2R2Q1/3R3Q w - - 0 1"]

1. exd5 cxd5 2. cxd5 exd5 3. Bxd5 Qaxd5+ 4. Ncxd5 Rxd5+ 5. Nxd5 Nexd5 6. Qdxd5 Nxd5 7. Qbxd5 Qdxd5+ 8. Rxd5 Qxd5+ 9. Qaxd5 Bxd5 10. Rxd5 Qaxd5+ 11. Qxd5 Qxd5+ 12. Qxd5 Rxd5+ 13. Kxd5

EDIT: I forgot to clarify that I meant on same square for all if the captures. But answers of including lots of squares are also acceptable.

  • 1
    You probably mean on the same square? – Allure Apr 16 at 7:47
  • I would say just “legal position”. This is defined to mean it is reachable in a series of legal moves from the game array. – Laska Apr 16 at 10:08

Here's an example of 29 successive captures (White's 3rd to White's 17th). It is the solution (from White's 3rd onwards) of a massacre proof-game found by Gerd Wilts & Norbert Geissler:

[Title "Gerd Wilts & Norbert Geissler; PDB P0005398"]
[StartPly "4"]
[fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

1.d3 d6 2. Bg5 Bg4 3. Bxe7 Bxe2 4. Bxd6 Bxf1 5. Bxc7 Qxd3 6. Bxb8 Qxc2 7. Bxa7 Rxa7 8. Qxc2 Rxa2 9. Qxh7 Rxb2 10. Qxg8 Rxb1 11. Rxb1 Rxh2 12. Rxb7 Rxh1 13. Rxf7 Rxg1 14. Rxg7 Rxg2 15. Qxf8+ Kxf8 16. Kxf1 Kxg7 17. Kxg2
  • Isn’t this sort of cooked? Because 16, Kxf1 Rxf2+ Kxf2 17. Kxg7 gets rid of that white pawn, making the maximum of 30 consecutive captures a reality. – Rewan Demontay Apr 17 at 19:52
  • @RewanDemontay Yes indeed, Just to correct your notation: 16 Kxf1 Rxf2+ 17 Kxf2 Kxg7. We lose uniqueness of proof game but we get 30 consecutive captures as you say. Well found. – Rosie F Apr 17 at 19:57
  • Thx. Perhaps you could add it into your game as an alternative move? And what do you think is the record for captutres on a single square (legal of course)? – Rewan Demontay Apr 17 at 20:06

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