MESON Chess Problem Database

Problem Display
PID: 162566 (Q1Kb4/8/1P1RP1q1/3P1p2/R1N1kP2/1B1pB3/n2P3N/2r5 w - - 0 1)

Janevski, Zivko

Sachova skladba, 2012

Q1Kb4/8/1P1RP1q1/3P1p2/R1N1kP2/1B1pB3/n2P3N/2r5

#2

13 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6+
      • 2.Rxe6#
      • 2.dxe6#
    • 1...Rxc4+
      • 2.Rxc4#
  • Tries
    • 1.Rd7?
      • threat
        • 2.d6#
      • 1...Rxc4+
        • 2.Rxc4#
      • 1...Qxe6
        • 2.dxe6#
      • 1...Sc3
        • 2.Sd6#
      • 1...Sb4!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sd6#
      • 1...Qxe6+
        • 2.Rxe6#
      • 1...Kxd5
        • 2.Rd6#
      • 1...Rxc4
        • 2.Rcxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE,P_SPINR(a),XS(F)::R(E),XR(a)
  • Tries
    • Try
      • R(J);
      • Threat
        • QAB(L)+P(H)
      • Vars
        • R(a);CHECK,OGATE,P_SPINR(a),XS(F)::R(E),XR(a)
        • Q(f);OGATE,P_PINR(J),XP(K)::QAB(L)+P(H),XQ(f)
        • S(b);N_PINS(F)::R(E)+S(F),DCHECK
      • Refutation
        • S(b);
  • Actual
    • R(J);N_SPINS(F)
    • Threat
      • R(E)+S(F),DCHECK
    • Vars
      • Q(f);CHECK,OGATE,XP(K)::R(J),XQ(f)
      • K(d);OGATEB,S_FLIGHT,XP(H)::QAB(L)+R(J),DCHECK
      • R(a);OGATE,P_PINR(J),P_SPINR(a),XS(F)::R(J),XR(a)
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