MESON Chess Problem Database

Problem Display
PID: 24476 (8/5KBk/6p1/5PRb/8/8/8/8 w - - 0 1)

Krivenko, Valery Aleksinovich

Chervoni prapor, 1976

8/5KBk/6p1/5PRb/8/8/8/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.fxg6#
    • 1...Be2
      • 2.fxg6#
    • 1...Bf3
      • 2.fxg6#
    • 1...Bg4
      • 2.fxg6#
    • 1...gxf5+
      • 2.Rxh5#
  • Tries
    • 1.Kf8?
      • 1...Bd1
        • 2.fxg6#
      • 1...Be2
        • 2.fxg6#
      • 1...Bf3
        • 2.fxg6#
      • 1...Bg4
        • 2.fxg6#
      • 1...gxf5!
  • Keys
    • 1.Rxg6!
      • 1...Bxg6+
        • 2.fxg6#
      • 1...Bd1
        • 2.Rh6#
      • 1...Be2
        • 2.Rh6#
      • 1...Bf3
        • 2.Rh6#
      • 1...Bg4
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::P(A),XP(b)
    • P(b);CHECK,N_GUARD,XP(A)::R(B),XB(a)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • B(a);N_GUARD::P(A),XP(b)
      • Refutation
        • P(b);XP(A)
  • Actual
    • R(B);P_SPINR(B),XP(b)
    • Vars
      • B(a);CHECK,OGATE,XR(B)::P(A),XB(a)
      • B(a);N_PINR(B)::R1(B)
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