MESON Chess Problem Database

Problem Display
PID: 136247 (5Q2/B1K3pp/8/2N5/3k1N1R/6bR/PPrp1PB1/8 w - - 0 1)

Biscan, Dragutin

Liga Problemista, 1988/2

5Q2/B1K3pp/8/2N5/3k1N1R/6bR/PPrp1PB1/8

#2

11 + 6

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sd3#
    • 1...Rc4
      • 2.Qd6#
      • 2.Qxg7#
    • 1...Rxc5+
      • 2.Qxc5#
    • 1...Bxf4+
      • 2.Qxf4#
  • Keys
    • 1.b3!
      • threat
        • 2.Qxg7#
      • 1...Rxc5+
        • 2.Qxc5#
      • 1...Bxf4+
        • 2.Qd6#
        • 2.Qxf4#
      • 1...Kc3
        • 2.Sa4#
      • 1...Ke5
        • 2.Sd3#
      • 1...Bxh4
        • 2.Qd6#
      • 1...g5
        • 2.Qg7#
        • 2.Qf6#
        • 2.Qh8#
      • 1...g6
        • 2.Qg7#
        • 2.Qf6#
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(d);N_PINS(F),P_PINS(H),S_FLIGHT::S(F)
    • R(a);CHECK,OGATE,P_SPINR(a),XS(H)::QAB1(K),XR(a)
    • B(c);CHECK,OGATE,P_PINS(H),P_SPINB(c),XS(F)::QAR2(K),XB(c)
  • Actual
    • P(B);
    • Threat
      • QAB(K),XP(e)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XS(H)::QAB1(K),XR(a)
      • K(d);P_SPINB(c),S_FLIGHT::S(H)
      • K(d);N_PINS(F),P_PINS(H),S_FLIGHT::S(F)
      • B(c);N_PINS(F),P_PINS(H),XR(G)::QAR2(K)
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