MESON Chess Problem Database

Problem Display
PID: 11222 (bb2Q3/8/1B4BR/1RNk4/4NP2/p1p5/2n5/7K w - - 0 1)

Walters, S

Chess, 1937

bb2Q3/8/1B4BR/1RNk4/4NP2/p1p5/2n5/7K

#2

9 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qd7+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Bd6!
    • 1.Qf7+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd4!
    • 1.Qd8+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6
        • 2.Be8#
        • 2.Qd7#
      • 1...Bd6!
    • 1.Qg8+?
      • 1...Kc6
        • 2.Be8#
      • 1...Kd4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sce4#
        • 2.Scb7#
      • 1...Kd4+
        • 2.Scb7#
      • 1...Kxd6+
        • 2.Be4#
      • 1...Bxd6
        • 2.Qe4#
      • 1...Bc6
        • 2.Qe5#
      • 1...Bb7
        • 2.Sce4#
        • 2.Scxb7#
      • 1...Sd4
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);OGATE,P_PINS(B),S_FLIGHT::QAB1(I)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(I)
      • Refutation
        • K(d);P-FLIGHT,P_PINS(B)
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);OGATE,P_PINS(B),S_FLIGHT::QAB1(I)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);S_FLIGHT::R(H)+B(G),DCHECK
      • Refutation
        • K(d);P-FLIGHT,P_PINS(B)
  • Actual
    • S(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);CHECK,P-FLIGHT::B(F)+S(E)
      • K(d);CHECK,P-FLIGHT,XS(B)::R(H)+B(G)
      • B(f);SBLOCK,XS(B)::QAB1(I)
      • B(e);SBLOCK::QAR1(I)
      • S(a);SBLOCK::B(G)
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