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EP bug in RHP Blitz Site.

EP bug in RHP Blitz Site.

Only Chess

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Hi

Heinz and myself played a few games to test this out.

E.P. does not work if King is in Check or is Checkmated

In this position it would not allow 6...fxg3.

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  • 7
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  • 6
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  • 5
  • d
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  • 2
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  • 1
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I marched my King across to Queenside and Blitz Site declared
White win even though Black has EP capture.


Here is the game -

  • 8
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  • 7
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  • 6
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  • 5
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1.Nb1-a3f7-f5
2.Na3-b1Ke8-f7
3.h2-h3Kf7-g6
4.Nb1-a3Kg6-h5
5.Na3-b1f5-f4
6.g2-g4Kh5-g5
7.d2-d3Kg5-f6
8.Bc1-e3Kf6-e5
9.Nb1-d2Ke5-d5
10.Nd2-f3Kd5-c6
11.a2-a3Kc6-b5
12.Bf1-g2a7-a5
13.Be3-a7a5-a4
14.Nf3-d4Kb5-a5
15.Bg2xb7g7-g6
16.b2-b4

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      Quite handy to know this, it could gain you valuable seconds on the clock.

      Your opponent might think they have been disconnected.

      In this this OTB position, Reefschlaeger -v- Fahnenschmidt, Germany 1987.

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      • 7
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      White has just played 23. f4+ and if it had been on the blitz site
      then it would be checkmate. Instead White went onto to lose this.

      • 8
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      • 7
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      • 6
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      • 5
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      1.d4d5
      2.c4c6
      3.cxd5cxd5
      4.Nc3Nf6
      5.Bf4Nc6
      6.e3Bf5
      7.Qb3Na5
      8.Qa4Bd7
      9.Bb5Nc6
      10.Nf3e6
      11.Ne5Qb6
      12.O-OBe7
      13.Nxd7Kxd7
      14.e4dxe4
      15.d5exd5
      16.Rad1Rad8
      17.Be5Ke6
      18.Bxf6Bxf6
      19.Nxd5Rxd5
      20.Bc4Nd4
      21.Bxd5Kxd5
      22.Qd7Ke5
      23.f4exf3
      24.Rde1Ne2
      25.Kh1Rd8
      26.Qh3Kd6
      27.Qxf3Nd4
      28.Qg3Kd7
      29.Qh3Kc7
      30.Qh5Rd7
      31.Rc1Nc6
      32.b3h6
      33.Rfe1a6
      34.Qg4Qd4
      35.Qf3Qd5
      36.Qg3Qd6
      37.Qg4Kb8
      38.Rcd1Nd4
      39.Re8Rd8
      40.Rxd8Qxd8
      41.Qf4Qc7
      42.Qe4Qe5
      43.Qd3Qd5
      44.h3Be5
      45.Qd2f5
      46.Qf2f4

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          How on earth did you manage to find that game?

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          How on earth did he manage to discover the bug? In a million years of playing, and a zillion games played, I've never come close to delivering mate with EP as the get-out.

          But I'm glad the bug has been discovered. It's so serious, I guess we're all due a refund on our subs 🙂

          1 edit
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          Originally posted by atticus2
          How on earth did he manage to discover the bug?
          by simply playing 😉 see Thread 115490

          1 edit
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          Thread 113454
          Thread 106242
          Thread 105886

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          Originally posted by Fat Lady
          How on earth did you manage to find that game?
          I just know these things. 😉

          Here is Maklari - Kocsis, Karacsony Cup Debrecen, 1998.

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          • 1
          • h

          Black has just played 26...e7-e5+ and the if it was not for the accursed
          en passant rule it would be checkmate. after 27.dxe6 Black resigned.

          • 8
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          • 7
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          • 6
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          • 5
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          • e
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          • f
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          1.e4c5
          2.Nf3d6
          3.d4cxd4
          4.Nxd4a6
          5.g3Bd7
          6.Bg2Nc6
          7.c4Qc7
          8.b3g6
          9.Bb2Nf6
          10.Nxc6Bxc6
          11.Nc3Bg7
          12.Nd5Bxd5
          13.cxd5Qa5
          14.Ke2Rc8
          15.Qd30-0
          16.a3Ng4
          17.Bxg7Kxg7
          18.Qd4Kg8
          19.Ra2Rc7
          20.Rd1Rfc8
          21.Bh3Rc2
          22.Rd2Qb5
          23.Qd3Qxd3
          24.Kxd3Nxf2
          25.Rxf2R8c3
          26.Kd4e5
          27.dxe6

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              1 edit
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              Just played this... and guess what, it didn't let me e.p. - which nearly led to a loss of a Rook!

              • 8
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              • 7
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              • c
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              • d
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              • e
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              1.e2-e4g7-g6
              2.Ng1-f3Bf8-g7
              3.d2-d4e7-e6
              4.Bf1-d3Ng8-e7
              5.O-Od7-d6
              6.Bc1-g5b7-b6
              7.Nb1-c3Bc8-b7
              8.d4-d5e6-e5
              9.Qd1-d2O-O
              10.Nf3-h4Nb8-d7
              11.f2-f4Bg7-h8
              12.f4xe5Nd7xe5
              13.Bg5-h6Rf8-e8
              14.Bd3-e2Qd8-d7
              15.Qd2-f4Bh8-g7
              16.Nh4-f3Re8-f8
              17.Bh6xg7Kg8xg7
              18.Nf3xe5d6xe5
              19.Qf4-f6Kg7-g8
              20.Qf6xe5f7-f6
              21.Qe5-g3Rf8-f7
              22.Be2-g4Qd7-d6
              23.Bg4-e6Qd6xg3
              24.h2xg3Ra8-f8
              25.Rf1xf6Kg8-g7
              26.Rf6xf7Rf8xf7
              27.Be6xf7Kg7xf7
              28.Kg1-f2Kf7-e8
              29.Kf2-e3Ke8-d7
              30.Ke3-d4Kd7-d6
              31.Ra1-f1c7-c5
              32.Kd4-d3Kd6-e5
              33.Nc3-e2a7-a6
              34.c2-c4b6-b5
              35.Ne2-f4b5xc4
              36.Kd3xc4a6-a5
              37.Rf1-e1Bb7-a6
              38.Kc4xc5

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