MESON Chess Problem Database

Problem Display
PID: 151905 (Bb6/3K4/2p4P/4kpp1/2p2R2/4ppNP/2Pn4/1Q6 w - - 0 1)

Desanges, L

Hampstead and Highgate Express, 1897

(First published on Sat Oct 2 1897)

Bb6/3K4/2p4P/4kpp1/2p2R2/4ppNP/2Pn4/1Q6

#2

8 + 9

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qxb8#
    • 1...Kd5
      • 2.Qb5#
  • Tries
    • 1.Qb2+?
      • 1...Kxf4
        • 2.Qxb8#
      • 1...Kd5
        • 2.Qd4#
        • 2.Qb5#
      • 1...c3!
    • 1.Qxb8+?
      • 1...Kd5
        • 2.Qd6#
        • 2.Qb5#
      • 1...Kf6!
  • Keys
    • 1.c3!
      • threat
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kxf4
        • 2.Qxb8#
      • 1...Kd5
        • 2.Qb5#
      • 1...Kf6
        • 2.Qxf5#
      • 1...Sxb1
        • 2.Rxf5#
      • 1...gxf4
        • 2.Qxf5#
      • 1...Se4
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT,XR(E)::QAB(A),XB(i)
    • K(e);P-FLIGHT,P_SPINP(h)::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(E)::QAB(A),XB(i)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(A);CHECK,XB(i)
      • Refutation
        • K(e);P_SPINP(f),S_FLIGHT
  • Actual
    • P(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);S_FLIGHT,XR(E)::QAB(A),XB(i)
      • K(e);P-FLIGHT,P_SPINP(h)::QAR2(A)
      • K(e);P_SPINP(f),S_FLIGHT::QAR1(A),XP(f)
      • S(a);XQ(A)::R1(E),XP(f)
      • P(g);XR(E)::QAR1(A),XP(f)
      • S(a);::R1(E),XP(f)
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