MESON Chess Problem Database

Problem Display
PID: 150731 (1nR2n2/Rp2N1K1/p3kP2/1P1pN2B/4b1P1/8/7B/7Q w - - 0 1)

Cochrane, JM

Hampstead and Highgate Express, 1896

(First published on Sat May 30 1896)

1nR2n2/Rp2N1K1/p3kP2/1P1pN2B/4b1P1/8/7B/7Q

#2

11 + 7

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxd5#
    • 1...Bc2
      • 2.Qxd5#
    • 1...Bd3
      • 2.Qxd5#
    • 1...Bf5
      • 2.Qxd5#
    • 1...Bg6
      • 2.Qxd5#
    • 1...Bh7
      • 2.Qxd5#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Sc5#
        • 2.Sxf8#
      • 1...Sbxd7
        • 2.Bf7#
      • 1...Sfxd7
        • 2.Bf7#
      • 1...Sg6
        • 2.Sc5#
      • 1...Sh7
        • 2.Sc5#
      • 1...b6
        • 2.Sxf8#
        • 2.Bf7#
      • 1...Kxd7!
    • 1.Qxe4?
      • threat
        • 2.Qxd5#
      • 1...Kd6
        • 2.Qxd5#
      • 1...d4
        • 2.Qd5#
      • 1...dxe4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sc5#
      • 1...Kd7
        • 2.Sc5#
      • 1...Bxd3
        • 2.Qxd5#
      • 1...Sbd7
        • 2.Bf7#
      • 1...Sfd7
        • 2.Bf7#
      • 1...b6
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(a);OGATE::QAB1(A),XP(b)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);SBLOCK,XS(E)::B(F)
        • S(g);SBLOCK,XS(E)::B(F)
        • S(g);::S(E)
      • Refutation
        • K(d);P_SPINP(e),S_FLIGHT,XS(E)
    • Try
      • Q(A);XB(a)
      • Threat
        • QAB1(A),XP(b)
      • Vars
        • K(d);P-FLIGHT::QAR1(A),XP(b)
        • P(b);::QAB1(A)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::S(E)
      • B(a);OGATE,XS(E)::QAB1(A),XP(b)
      • S(f);SBLOCK::B(F)
      • S(g);SBLOCK::B(F)
      • P(e);::B(F)
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