MESON Chess Problem Database

Problem Display
PID: 151460 (1QN5/2Pp4/2pR2K1/3pk1N1/1P3p1R/4p3/4P3/8 w - - 0 1)

Colville, Robert A

Hampstead and Highgate Express, 1897

(First published on Sat Jan 23 1897)

1QN5/2Pp4/2pR2K1/3pk1N1/1P3p1R/4p3/4P3/8

#2

9 + 6

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Sxf3#
      • 2.Sf7#
  • Tries
    • 1.Qa7?
      • 1...d4
        • 2.Qxd4#
        • 2.Qc5#
      • 1...f3
        • 2.Sxf3#
        • 2.Sf7#
        • 2.Qxe3#
        • 2.Qd4#
      • 1...c5!
    • 1.Qb6?
      • 1...d4
        • 2.Qxd4#
        • 2.Qc5#
      • 1...f3
        • 2.Sxf3#
        • 2.Sf7#
        • 2.Qxe3#
        • 2.Qd4#
      • 1...c5!
  • Keys
    • 1.Sb6!
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxd6
        • 2.c8S#
      • 1...f3
        • 2.Sf7#
      • 1...d4
        • 2.Sc4#
      • 1...c5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Refutation
        • P(e);
    • Try
      • Q(H);
      • Refutation
        • P(e);
  • Actual
    • S(I);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::QAB(H)
      • K(d);S_FLIGHT,XR(E)::P=S
      • P(b);::S(D)
      • P(c);N_GUARD::S(I)
      • P(e);N_GUARD::R1(E),XP(c)
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