MESON Chess Problem Database

Problem Display
PID: 132903 (3R4/1N1pk1p1/4P1P1/2PPPp2/3BpK2/8/5P2/8 w - - 0 1)

Whitworth, WHA

The Field, 1959

(First published on Thu Jun 4 1959)

3R4/1N1pk1p1/4P1P1/2PPPp2/3BpK2/8/5P2/8

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...dxe6
      • 2.d6#
    • 1...d6
      • 2.cxd6#
      • 2.exd6#
  • Tries
    • 1.Ke3?
      • 1...dxe6
        • 2.d6#
      • 1...d6
        • 2.cxd6#
        • 2.exd6#
      • 1...f4+!
    • 1.Kxf5?
      • threat
        • 2.d6#
      • 1...d6
        • 2.cxd6#
        • 2.exd6#
      • 1...dxe6+!
    • 1.Ba1?
      • 1...dxe6
        • 2.d6#
      • 1...d6
        • 2.cxd6#
        • 2.exd6#
      • 1...e3!
    • 1.Bb2?
      • 1...dxe6
        • 2.d6#
      • 1...d6
        • 2.cxd6#
        • 2.exd6#
      • 1...e3!
    • 1.Bc3?
      • 1...dxe6
        • 2.d6#
      • 1...d6
        • 2.cxd6#
        • 2.exd6#
      • 1...e3!
    • 1.c6?
      • 1...dxc6
        • 2.Bc5#
      • 1...dxe6
        • 2.Bc5#
        • 2.d6#
      • 1...d6
        • 2.exd6#
      • 1...e3!
  • Keys
    • 1.Be3!
      • 1...dxe6
        • 2.d6#
      • 1...d6
        • 2.cxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XP(G)::P(E)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(c);SBLOCK,XP(G)::P(E)
      • Refutation
        • P(b);CHECK
    • Try
      • K(C);P-FLIGHT,XP(b)
      • Threat
        • P(E)
      • Refutation
        • P(c);CHECK,XP(G)
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK,XP(G)::P(E)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK,XP(G)::P(E)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK,XP(G)::P(E)
      • Refutation
        • P(a);
    • Try
      • P(D);
      • Vars
        • P(c);N_GUARD,XP(D)::B(B)
        • P(c);OGATE::P(F),XP(c)
      • Refutation
        • P(a);
  • Actual
    • B(B);
    • Vars
      • P(c);SBLOCK,XP(G)::P(E)
      • P(c);OGATE::P(D),XP(c)
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