MESON Chess Problem Database

Problem Display
PID: 144276 (5B2/R7/1p5P/1p1k1N2/bP5R/1r2p1P1/BQ2P3/1K6 w - - 0 1)

Boswell, Edward

Boys' Own Paper, 1926

5B2/R7/1p5P/1p1k1N2/bP5R/1r2p1P1/BQ2P3/1K6

#2

11 + 6

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sxe3+?
      • 1...Ke6
        • 2.Re4#
      • 1...Kc6!
    • 1.Bxb3+?
      • 1...Kc6
        • 2.Sd4#
        • 2.Qc1#
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qc2#
      • 1...Bxb3!
    • 1.Qxb3+?
      • 1...Ke5
        • 2.Qe6#
      • 1...Kc6
        • 2.Sd4#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qc3#
      • 1...Bxb3!
  • Keys
    • 1.Rh5!
      • 1...Kc4
        • 2.Sxe3#
      • 1...Ke4
        • 2.Sd6#
      • 1...Kc6
        • 2.Sd4#
      • 1...Ke6
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK,XP(b)
      • Vars
        • K(e);S_FLIGHT::R(G)
      • Refutation
        • K(e);N_SPINR(a),S_FLIGHT
    • Try
      • B(B);CHECK,N_SPINQ(C),XR(a)
      • Refutation
        • B(c);XB(B)
    • Try
      • Q(C);CHECK,N_SPINQ(C),XR(a)
      • Vars
        • K(e);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • B(c);P_SPINB(c),XQ(C)
  • Actual
    • R(G);
    • Vars
      • K(e);S_FLIGHT::S(H),XP(b)
      • K(e);N_SPINR(a),S_FLIGHT::S(H)
      • K(e);S_FLIGHT::S(H)
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