MESON Chess Problem Database

Problem Display
PID: 1074 (B7/8/8/8/8/5NPp/3P1RbP/R3KN1k w Q - 0 1)

Retter, Yosef

The Problemist Supplement, 2000

B7/8/8/8/8/5NPp/3P1RbP/R3KN1k

#2

9 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Ke2?
      • 1...Bxf1+
        • 2.Raxf1#
      • 1...Bxf3+!
    • 1.Se3?
      • 1...Bf1
        • 2.Rxf1#
      • 1...Bxf3!
  • Keys
    • 1.0-0-0!
      • 1...Bxf1
        • 2.Rdxf1#
      • 1...Bxf3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • B(b);CHECK,OGATE,P_SPINB(b),XS(C)::R(A),XB(b)
      • Refutation
        • B(b);CHECK,P_SPINB(b),XS(G)
    • Try
      • S(C);
      • Vars
        • B(b);N_GUARD::R(E),XB(b)
      • Refutation
        • B(b);P_SPINB(b),XS(G)
  • Actual
    • K(B);0-0-0
    • Vars
      • B(b);OGATE,P_SPINB(b),XS(C)::R(A),XB(b)
      • B(b);N_GUARD,P_SPINB(b),XS(G)::R(A)+S(C)
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