MESON Chess Problem Database

Problem Display
PID: 11024 (1Q3B2/3p4/3p2N1/2N5/3k1b2/1K2p1p1/4P1P1/8 w - - 0 1)

Carter, WH

Chess, 1936

1Q3B2/3p4/3p2N1/2N5/3k1b2/1K2p1p1/4P1P1/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Qxd6#
    • 1...Bh6
      • 2.Qxd6#
    • 1...d5
      • 2.Qxf4#
      • 2.Qb4#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qc4#
      • 1...d5
        • 2.Qd3#
        • 2.Qa4#
        • 2.Qb4#
      • 1...Kd5!
  • Keys
    • 1.Se7!
      • 1...Kxc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Bg7#
      • 1...dxc5
        • 2.Qxf4#
      • 1...Be5
        • 2.Qb4#
      • 1...Bg5
        • 2.Qxd6#
      • 1...Bh6
        • 2.Qxd6#
      • 1...d5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD::QAR2(F),XP(e)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB1(F)
      • K(c);P_SPINP(e),S_FLIGHT::B(G)
      • P(e);OGATE,SBLOCK,XS(D)::QAR2(F),XB(d)
      • B(d);SBLOCK::QAR2(F)
      • B(d);N_GUARD::QAR2(F),XP(e)
      • P(e);SBLOCK::S(E)
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