MESON Chess Problem Database

Problem Display
PID: 32292 (3R4/b3Q3/2pNP3/Pp4NR/3k3P/2p2BBK/1nPpp3/8 w - - 0 1)

Slater, George James

The Westminster Papers, 1875

3R4/b3Q3/2pNP3/Pp4NR/3k3P/2p2BBK/1nPpp3/8

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sf5#
    • 1...Sc4
      • 2.Sf5#
  • Tries
    • 1.Sxb5+?
      • 1...Kc4
        • 2.Sa3#
      • 1...Ke3!
    • 1.Sdf7+?
      • 1...Kc4
        • 2.Se5#
      • 1...Ke3!
    • 1.Qf6+?
      • 1...Ke3
        • 2.Sf5#
        • 2.Qe5#
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qg7+?
      • 1...Ke3
        • 2.Sf5#
        • 2.Qe5#
      • 1...Kc5!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Sf5#
      • 1...Ke3
        • 2.Sf5#
      • 1...Kc5
        • 2.Sf5#
      • 1...Kxd5
        • 2.Sf3#
      • 1...cxd5
        • 2.Qxa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(e);S_FLIGHT::S(I)
    • S(a);SBLOCK::R(L)+S(I),DCHECK
  • Tries
    • Try
      • S(I);CHECK,XP(f)
      • Vars
        • K(e);P-FLIGHT::S(I)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(I);CHECK
      • Vars
        • K(e);P-FLIGHT::S(I)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • S(I)
    • Vars
      • K(e);S_FLIGHT::S(I)
      • K(e);S_FLIGHT::QAB(K)+S(I)
      • K(e);P-FLIGHT,XB(B)::R(H)+S(G)
      • P(g);N_GUARD,SBLOCK,XB(B)::QAB(K),XB(h)
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