MESON Chess Problem Database

Problem Display
PID: 150728 (1B3b2/3R4/p2rpN2/4k1P1/R5K1/3p2n1/3N4/7b w - - 0 1)

Cochrane, JM

Hampstead and Highgate Express, 1896

(First published on Sat May 9 1896)

1B3b2/3R4/p2rpN2/4k1P1/R5K1/3p2n1/3N4/7b

#2

7 + 8

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3+
      • 2.Sxf3#
    • 1...Bh6
      • 2.Bxd6#
    • 1...Bg7
      • 2.Bxd6#
  • Tries
    • 1.Ra5+?
      • 1...Bd5
        • 2.Sf3#
      • 1...Kd4!
    • 1.Rxd6?
      • threat
        • 2.Sc4#
        • 2.Sd7#
        • 2.Rd5#
      • 1...Bf3+
        • 2.Sxf3#
      • 1...Bd5
        • 2.Sd7#
        • 2.Rxd5#
      • 1...Bc6
        • 2.Sc4#
        • 2.Rd5#
      • 1...Bxd6!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Sc4#
      • 1...Rd4+
        • 2.Bxd4#
      • 1...Bf3+
        • 2.Sxf3#
      • 1...Rc6
        • 2.Bd4#
      • 1...Bd5
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);CHECK,N_GUARD::S(A),XB(a)
    • B(h);N_GUARD::B(G),XR(f)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • B(a);P_SPINB(a)::S(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(F);XR(f)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);CHECK,N_GUARD::S(A),XB(a)
      • Refutation
        • B(h);P_SPINB(h),XR(F)
  • Actual
    • B(G);N_PINR(f)
    • Threat
      • S(A)
    • Vars
      • R(f);CHECK,N_GUARD::B(G),XR(f)
      • B(a);CHECK,N_GUARD::S(A),XB(a)
      • R(f);N_GUARD::B(G)
      • B(a);S_CUTR(f)::B(G)
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