MESON Chess Problem Database

Problem Display
PID: 104588 (6n1/4N1p1/5kP1/Q2PRp2/5N2/5K2/8/8 w - - 0 1)

Splichal, Ladislav

Sachove umeni (Ceskoslovensky sach), 1969

6n1/4N1p1/5kP1/Q2PRp2/5N2/5K2/8/8

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxg8+?
      • 1...Kg5
        • 2.Qd8#
      • 1...Kxe5!
    • 1.Qb6+?
      • 1...Kxe5
        • 2.Sd3#
      • 1...Kg5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Rxf5#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Kg5
        • 2.Sxg8#
      • 1...Sxe7
        • 2.Qxe7#
      • 1...Sh6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,XS(d)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(E)::S(B)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • R1(E),XP(a)
    • Vars
      • K(b);S_FLIGHT,XR(E)::S(G)
      • K(b);P_SPINP(a),S_FLIGHT::QAB(C)+S(G),XS(d)
      • S(d);OGATE,P_SPINS(d),XS(G)::QAB1(C),XS(d)
      • S(d);N_GUARD::QAB(C)+S(G)
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