MESON Chess Problem Database

Problem Display
PID: 86758 (7k/4KP1q/4R3/8/8/5n1Q/8/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Vecherni Magadan, 1997

7k/4KP1q/4R3/8/8/5n1Q/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kg7
      • 2.f8Q#
    • 1...Qh6
      • 2.Qxh6#
  • Keys
    • 1.Rh6!
      • threat
        • 2.Rxh7#
      • 1...Kg7
        • 2.f8Q#
      • 1...Qxh6
        • 2.Qxh6#
      • 1...Sh4
        • 2.Qc3#
      • 1...Sg5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_PINP(D),N_SPINQ(b),S_FLIGHT::P=Q
    • Q(b);N_PINP(D),OGATEB::QAR2(A),XQ(b)
  • Actual
    • R(B);
    • Threat
      • R1(B),XQ(b)
    • Vars
      • K(c);N_PINP(D),N_SPINQ(b),S_FLIGHT::P=Q
      • Q(b);N_PINP(D),OGATE,XR(B)::QAR2(A),XQ(b)
      • S(a);OGATE::QAB(A)
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