MESON Chess Problem Database

Problem Display
PID: 31787 (5n2/5Q2/8/2Npk3/1Bpr3N/K2b4/5Pr1/7B w - - 0 1)

Gold, Samuel

The Westminster Papers, 1875

5n2/5Q2/8/2Npk3/1Bpr3N/K2b4/5Pr1/7B

#2

7 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd3+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qf5#
      • 1...cxd3
        • 2.Qf5#
      • 1...Rxd3+!
    • 1.Sd7+?
      • 1...Ke4
        • 2.Bxg2#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sxd7!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Bd2#
      • 1...Sxe6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Rxf2
        • 2.Bd6#
      • 1...Rxe4
        • 2.Sf3#
      • 1...Bxe4
        • 2.f4#
      • 1...Rg5
        • 2.Bd6#
        • 2.Qf6#
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK,XB(b)
      • Vars
        • P(c);XS(F)::QAR1(G)
      • Refutation
        • R(d);CHECK,XS(F)
    • Try
      • S(F);CHECK
      • Refutation
        • S(g);XS(F)
    • Try
      • Q(G);CHECK
      • Vars
        • K(f);S_FLIGHT::B(D)
      • Refutation
        • S(g);XQ(G)
  • Actual
    • S(F);
    • Threat
      • QAR1(G)
    • Vars
      • K(f);P-FLIGHT,P_SPINR(a),XS(F)::QAB1(G)
      • R(a);XP(B)::B(D)
      • R(d);SBLOCK,XS(F)::S(E)
      • B(b);SBLOCK,XS(F)::P(B)
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