MESON Chess Problem Database

Problem Display
PID: 164588 (1nbb4/K1k5/1Np2p2/2Pp4/7B/6R1/8/8 w - - 0 1)

Jankevics, Karlis

Sachmatija, 2007

1nbb4/K1k5/1Np2p2/2Pp4/7B/6R1/8/8

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd7
      • 2.Sa8#
  • Tries
    • 1.Rg7+?
      • 1...Bd7
        • 2.Bg3#
      • 1...Sd7
        • 2.Sa8#
        • 2.Bg3#
      • 1...Be7!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Bg3#
      • 1...f5
        • 2.Bxd8#
      • 1...Be7
        • 2.Rxc8#
      • 1...Sd7
        • 2.Sa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::S(D)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(f);P_SPINB(f)::B(B)
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • R(A);
    • Threat
      • B(B)
    • Vars
      • P(c);OGATE::B(B),XB(g)
      • B(g);OGATE::R1(A),XB(f)
      • S(e);SBLOCK::S(D)
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