MESON Chess Problem Database

Problem Display
PID: 104625 (8/5p2/2P2P2/1KNk1rp1/1Q1P1pB1/5p2/5P2/3R4 w - - 0 1)

Tomic, Ziva

Mezija, 1999

8/5p2/2P2P2/1KNk1rp1/1Q1P1pB1/5p2/5P2/3R4

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • 1...Rxf6
        • 2.Qe5#
      • 1...Re5
        • 2.Qxe5#
        • 2.dxe5#
      • 1...Kd6!
    • 1.Qa5?
      • threat
        • 2.Qd8#
      • 1...Kd6
        • 2.Qd8#
      • 1...Rxf6!
  • Keys
    • 1.Sd7!
      • 1...Ke4+
        • 2.d5#
      • 1...Ke6+
        • 2.d5#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Re5
        • 2.dxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • R(d);N_GUARD,XP(I)::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT,P_PINS(G)
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(c);P-FLIGHT,P_PINS(G)::QAR2(C)
      • Refutation
        • R(d);XP(I)
  • Actual
    • S(G);
    • Vars
      • K(c);CHECK,OGATE,S_FLIGHT::QAR(C)+P(D)
      • K(c);CHECK,OGATE,P_SPINR(d),S_FLIGHT::P(D)
      • R(d);XP(I)::S(G),XR(d)
      • R(d);OGATE::R(A)+P(D),XR(d)
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