MESON Chess Problem Database

Problem Display
PID: 192808 (8/3K1Qp1/6P1/3n4/P1k2P2/2p1B3/2N5/2N5 w - - 0 1)

Holroyd, GC

The Observer, 1940

(First published on Sun Jan 7 1940)

8/3K1Qp1/6P1/3n4/P1k2P2/2p1B3/2N5/2N5

#2

8 + 4

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Ke6!
      • 1...Sxf4+
        • 2.Qxf4#
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Sxe3
        • 2.Qc7#
      • 1...Sb4
        • 2.Sa3#
      • 1...Sb6
        • 2.Qc7#
      • 1...Sf6
        • 2.Qc7#
      • 1...Se7
        • 2.Kxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • K(G);N_PINS(c),S_FLIGHT
    • Vars
      • S(c);CHECK,OGATE,XP(E)::QAR(H),XS(c)
      • S(c);CHECK,N_GUARD::QAR(H),XS(c)
      • S(c);N_GUARD,XB(C)::QAR(H)
      • S(c);SBLOCK::S(B)
      • S(c);N_GUARD::QAR(H)
      • S(c);::QAB(H)+K(G),XS(c)
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