MESON Chess Problem Database

Problem Display
PID: 150296 (7Q/3p4/2N1p2b/K2k4/1P1B4/3P4/4P3/8 w - - 0 1)

Colwill, SR

The Referee, 1925

(First published on Sun Jul 5 1925)

7Q/3p4/2N1p2b/K2k4/1P1B4/3P4/4P3/8

#2

7 + 4

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...dxc6
      • 2.Qe5#
      • 2.Qd8#
    • 1...d6
      • 2.Se7#
  • Keys
    • 1.Be5!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...dxc6
        • 2.e4#
      • 1...Bg5
        • 2.Qh1#
      • 1...Bg7
        • 2.Qh1#
      • 1...Bf8
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(d);SBLOCK::S(F)
  • Actual
    • B(D);
    • Threat
      • S(F)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(F)::QAB(G)
      • P(d);SBLOCK,XS(F)::P(A)
      • B(c);OGATE::QAB(G)
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