MESON Chess Problem Database

Problem Display
PID: 182277 (7Q/2p1nK2/2N3P1/R1PkP3/1n2p3/1P6/2P5/8 w - - 0 1)

White, Alain Campbell

The Field, 1906

(First published on Sat Feb 24 1906)

7Q/2p1nK2/2N3P1/R1PkP3/1n2p3/1P6/2P5/8

#2

9 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qh1#
  • Keys
    • 1.e6!
      • threat
        • 2.Sxb4#
        • 2.Sxe7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Sxc2
        • 2.Sxe7#
      • 1...Sbxc6
        • 2.c4#
      • 1...Sexc6
        • 2.c4#
      • 1...Sxg6
        • 2.Sxb4#
      • 1...e3
        • 2.Qh1#
      • 1...Sa2
        • 2.Sxe7#
      • 1...Sd3
        • 2.Sxe7#
      • 1...Sa6
        • 2.Sxe7#
      • 1...Sf5
        • 2.Sxb4#
      • 1...Sc8
        • 2.Sxb4#
      • 1...Sg8
        • 2.Sxb4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(I)
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(I)
      • S(a);XP(A)::S(F),XS(e)
      • S(a);SBLOCK,XS(F)::P(A)
      • S(e);SBLOCK,XS(F)::P(A)
      • S(e);XP(G)::S(F),XS(a)
      • P(b);OGATEB::QAB(I)
      • S(a);::S(F),XS(e)
      • S(e);::S(F),XS(a)
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