MESON Chess Problem Database

Problem Display
PID: 152428 (8/2R3p1/4pPB1/R1BPkp2/7P/2K2P2/8/4N2Q w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

8/2R3p1/4pPB1/R1BPkp2/7P/2K2P2/8/4N2Q

#2

11 + 4

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qh2#
    • 1...Kxd5
      • 2.Ba3#
      • 2.Bb4#
      • 2.Be7#
      • 2.Bf8#
      • 2.f4#
  • Tries
    • 1.Sd3+?
      • 1...Kxd5
        • 2.Ba3#
        • 2.Bb4#
        • 2.Be7#
        • 2.Bf8#
        • 2.f4#
      • 1...Kxf6!
    • 1.Bd4+?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kd6!
  • Keys
    • 1.Rc6!
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxd5
        • 2.f4#
      • 1...Kxf6
        • 2.Rxe6#
      • 1...exd5
        • 2.Sd3#
      • 1...gxf6
        • 2.Bd6#
      • 1...f4
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(I)
    • Try
      • B(G);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(K);
    • Vars
      • K(a);S_FLIGHT::QAB(B)
      • K(a);P-FLIGHT,XP(H)::QAB(B)+P(D)
      • K(a);P_SPINP(c),S_FLIGHT,XP(I)::R1(K),XP(c)
      • P(c);SBLOCK,XP(H)::S(A)
      • P(d);SBLOCK,XP(I)::B(G)
      • P(b);SBLOCK::B(G)
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