MESON Chess Problem Database

Problem Display
PID: 2587 (4K3/1p5B/1P1B3R/P1pkN3/P4P2/2p1p3/2NnP3/3R4 w - - 0 1)

Pearson, Arthur Cyril

Chess Chips, 1878

4K3/1p5B/1P1B3R/P1pkN3/P4P2/2p1p3/2NnP3/3R4

#2

12 + 6

2794 Terms & Themes of Chess Problems 1907

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • 1...Kc4
        • 2.Bg8#
      • 1...c4
        • 2.Sb4#
      • 1...Kc6!
    • 1.Sc4?
      • 1...Kxc4
        • 2.Bg8#
      • 1...Kc6!
    • 1.Bg6?
      • 1...Kxd6
        • 2.Be4#
        • 2.Bf7#
      • 1...Ke6
        • 2.Be4#
      • 1...c4!
    • 1.Rxd2+?
      • 1...exd2
        • 2.e4#
      • 1...cxd2!
  • Keys
    • 1.Sg6!
      • 1...Kc4
        • 2.Bg8#
      • 1...Ke4
        • 2.Se7#
      • 1...Kc6
        • 2.Se7#
      • 1...Kxd6
        • 2.Se7#
      • 1...Ke6
        • 2.Se7#
      • 1...c4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • K(e);N_SPINS(a),S_FLIGHT::B(K)
        • P(d);N_GUARD,SBLOCK::S(B)
      • Refutation
        • K(e);N_SPINS(a),S_FLIGHT
    • Try
      • S(G);
      • Vars
        • K(e);N_SPINS(a),S_FLIGHT,XS(G)::B(K)
      • Refutation
        • K(e);N_SPINS(a),S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(e);N_SPINS(a),S_FLIGHT::R(J)+B(K)
      • Refutation
        • P(d);
    • Try
      • R(A);CHECK,XS(a)
      • Vars
        • P(c);OGATE,XR(A)::P(C)
      • Refutation
        • P(b);XR(A)
  • Actual
    • S(G);
    • Vars
      • K(e);N_SPINS(a),S_FLIGHT::B(K)
      • K(e);N_SPINS(a),S_FLIGHT::B(K)+S(G)
      • K(e);N_SPINS(a),S_FLIGHT::S(G)
      • K(e);P-FLIGHT,XB(I)::R(J)+S(G)
      • K(e);N_SPINS(a),S_FLIGHT::R(J)+S(G)
      • P(d);SBLOCK::S(G)
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