MESON Chess Problem Database

Problem Display
PID: 193323 (K6k/6bP/R6R/3pB3/8/8/2b5/8 w - - 0 1)

Hajek, Frantisek

Pravo lidu, 1914

K6k/6bP/R6R/3pB3/8/8/2b5/8

#2

5 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Bxf6#
  • Tries
    • 1.Rag6?
      • threat
        • 2.Bxg7#
      • 1...Bxe5
        • 2.Rg8#
      • 1...Bf6
        • 2.Bxf6#
        • 2.Rg8#
      • 1...Bxg6!
  • Keys
    • 1.Raf6!
      • threat
        • 2.Rf8#
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Bxh6
        • 2.Rxh6#
      • 1...Bf8
        • 2.Rxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATEB::B(A),XB(c)
  • Tries
    • Try
      • R(B);
      • Threat
        • B(A),XB(c)
      • Vars
        • B(c);N_SPINB(c),OGATE,XB(A)::R1(B)
      • Refutation
        • B(a);XR(B)
  • Actual
    • R(B);N_PINB(c)
    • Threat
      • R(B)
    • Vars
      • B(c);OGATE,P_SPINB(c),XR(B)::B(A),XB(c)
      • B(c);OGATE,XR(C)::B(A)+R(B),XB(c)
      • B(c);::B(A)+R(B),DCHECK,XB(c)
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