MESON Chess Problem Database

Problem Display
PID: 235193 (8/B6Q/8/4K1p1/1N4k1/6pb/6p1/5NRB w - - 0 1)

Haring, Jacobus

Schach, 1977

8/B6Q/8/4K1p1/1N4k1/6pb/6p1/5NRB

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qe4#
    • 1...gxh1Q
      • 2.Rxg3#
    • 1...gxh1S
      • 2.Sh2#
    • 1...gxh1B
      • 2.Sh2#
      • 2.Rxg3#
    • 1...gxh1R
      • 2.Rxg3#
  • Tries
    • 1.Sc2?
      • 1...Kf3
        • 2.Qe4#
      • 1...gxf1Q
        • 2.Se3#
      • 1...gxf1B
        • 2.Se3#
      • 1...gxf1R
        • 2.Se3#
      • 1...gxh1Q
        • 2.Rxg3#
      • 1...gxh1S
        • 2.Sh2#
      • 1...gxh1B
        • 2.Sh2#
        • 2.Rxg3#
      • 1...gxh1R
        • 2.Rxg3#
      • 1...gxf1S!
    • 1.Rxg2?
      • threat
        • 2.Sh2#
        • 2.Rxg3#
      • 1...Kf3
        • 2.Qe4#
      • 1...Bxg2!
  • Keys
    • 1.Sd5!
      • 1...Kf3
        • 2.Qe4#
      • 1...gxf1Q
        • 2.Se3#
      • 1...gxf1S
        • 2.Sf6#
      • 1...gxf1B
        • 2.Se3#
        • 2.Sf6#
      • 1...gxf1R
        • 2.Se3#
      • 1...gxh1Q
        • 2.Rxg3#
      • 1...gxh1S
        • 2.Sh2#
      • 1...gxh1B
        • 2.Sh2#
        • 2.Rxg3#
      • 1...gxh1R
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(a),S_FLIGHT::QAB1(G)
    • P(a);OGATE,P_SPINP(b),XB(C)::R1(B),XP(b)
    • P(a);P_SPINP(b),XB(C)::S(A)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(d);P_SPINP(a),S_FLIGHT::QAB1(G)
        • P(a);P_SPINP(b),XS(A)::S(D)
        • P(a);OGATE,P_SPINP(b),XB(C)::R1(B),XP(b)
        • P(a);P_SPINP(b),XB(C)::S(A)
      • Refutation
        • P(a);P_SPINP(b),XS(A)
    • Try
      • R(B);P_PINP(b),XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINP(b),S_FLIGHT::QAB1(G)
      • Refutation
        • B(c);N_SPINP(b),XR(B)
  • Actual
    • S(D);
    • Vars
      • K(d);P_SPINP(a),S_FLIGHT::QAB1(G)
      • P(a);P_SPINP(b),XS(A)::S(D)
      • P(a);OGATE,P_SPINP(b),XB(C)::R1(B),XP(b)
      • P(a);P_SPINP(b),XB(C)::S(A)
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