MESON Chess Problem Database

Problem Display
PID: 163428 (8/7b/6pK/1p3N1n/8/4pR2/1N1bp3/Q1B1k3 w - - 0 1)

Kozyura, Gennady Volodimirovich

idee & form, 1993

8/7b/6pK/1p3N1n/8/4pR2/1N1bp3/Q1B1k3

#2

6 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc1
      • 2.Qxc1#
    • 1...Bc3
      • 2.Bxe3#
    • 1...Bb4
      • 2.Bxe3#
    • 1...Ba5
      • 2.Bxe3#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sc2#
      • 1...Bxc1
        • 2.Qxc1#
      • 1...g5!
    • 1.Sh4?
      • threat
        • 2.Sg2#
      • 1...Bxc1
        • 2.Qxc1#
      • 1...Sf4!
  • Keys
    • 1.Sxe3!
      • threat
        • 2.Sd3#
      • 1...Bxe3+
        • 2.Bxe3#
      • 1...Bxc1
        • 2.Qxc1#
      • 1...Sf4
        • 2.Sc2#
      • 1...g5
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(b);OGATE,P_SPINB(b),XB(B)::QAR2(A),XB(b)
    • B(b);OGATE::QAR(A)+B(B),XP(d)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(b);OGATE,P_SPINB(b),XB(B)::QAR2(A),XB(b)
      • Refutation
        • P(g);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(b);OGATE,P_SPINB(b),XB(B)::QAR2(A),XB(b)
      • Refutation
        • S(f);
  • Actual
    • S(E);P_SPINS(E),XP(d)
    • Threat
      • S(C)
    • Vars
      • B(b);CHECK,OGATE,XS(E)::QAR(A)+B(B),XB(b)
      • B(b);OGATE,P_SPINB(b),XB(B)::QAR2(A),XB(b)
      • S(f);N_PINS(E)::S(E)
      • P(g);N_PINS(E)::S(E)
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