MESON Chess Problem Database

Problem Display
PID: 22392 (6B1/N7/8/P2n4/p1kn1R2/P6Q/4P3/K2b4 w - - 0 1)

Gamage, Frederick

2nd Prize Set=, Norwich Mercury, 1907

6B1/N7/8/P2n4/p1kn1R2/P6Q/4P3/K2b4

#2

8 + 5

15 British Chess Magazine 1907
2794 Terms & Themes of Chess Problems 1907

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3
      • 2.Qc8#
  • Tries
    • 1.Kb2?
      • threat
        • 2.Qc8#
        • 2.Qc3#
      • 1...Bxe2
        • 2.Qc3#
      • 1...Kc5!
    • 1.Qh7?
      • 1...Kb3
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Bxe2
        • 2.Qc2#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Bb3
        • 2.Qc7#
      • 1...Kc5!
  • Keys
    • 1.Qf5!
      • 1...Kb3
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Kc5
        • 2.Qxd5#
      • 1...Bxe2
        • 2.Qc2#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Bb3
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR(D)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(B)::QAR1(D)
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(c);N_SPINS(d),P_SPINS(e),S_FLIGHT::QAR2(D)
        • K(c);N_SPINS(d),P-FLIGHT::QAR1(D)
        • B(a);N_GUARD,XP(B)::QAR2(D)
        • B(a);N_GUARD::QAR2(D),XB(a)
        • B(a);SBLOCK::QAR(D)
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(c);N_SPINS(d),P_SPINS(e),S_FLIGHT::QAR2(D)
      • K(c);N_SPINS(d),P-FLIGHT::QAR1(D)
      • K(c);N_SPINS(d),P-FLIGHT,P_SPINS(e)::QAR1(D),XS(e)
      • B(a);N_GUARD,XP(B)::QAR2(D)
      • B(a);N_GUARD::QAR2(D),XB(a)
      • B(a);SBLOCK::QAR(D)
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