MESON Chess Problem Database

Problem Display
PID: 3219 (8/2p5/4K1pp/5pkp/1Q3Npr/7b/7b/8 w - - 0 1)

Gavrilovski, Zoran

1st Place, Source?, 1989

8/2p5/4K1pp/5pkp/1Q3Npr/7b/7b/8

#2

3 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Qe7#
  • Tries
    • 1.Ke5?
      • threat
        • 2.Qe7#
      • 1...Bxf4+
        • 2.Qxf4#
      • 1...g3
        • 2.Se6#
      • 1...c5!
    • 1.Qd2?
      • threat
        • 2.Sxh3#
      • 1...Bxf4
        • 2.Qd8#
      • 1...Bf1
        • 2.Sh3#
      • 1...Bg2
        • 2.Sh3#
      • 1...g3!
  • Keys
    • 1.Kf7!
      • threat
        • 2.Se6#
      • 1...Bxf4
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XS(B)::QAB(A)
  • Tries
    • Try
      • K(C);P-FLIGHT,P_SPINS(B)
      • Threat
        • QAB(A)
      • Vars
        • B(a);CHECK,OGATE,XS(B)::QAB1(A),XB(a)
        • P(c);N_PINS(B)::S(B)
      • Refutation
        • P(j);
    • Try
      • Q(A);
      • Threat
        • QAB(A)+S(B),DCHECK,XB(b)
      • Vars
        • B(a);P_SPINB(a),SBLOCK,XS(B)::QAB(A)
        • B(b);::QAB(A)+S(B),DCHECK
      • Refutation
        • P(c);
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • S(B)
    • Vars
      • B(a);SBLOCK,XS(B)::QAB(A)
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