MESON Chess Problem Database

Problem Display
PID: 150620 (8/1p2p3/1P2Q3/b1kN4/P3p3/2pPK3/2B5/8 w - - 0 1)

Challenger, Alfred Clement

Hampstead and Highgate Express, 1896

(First published on Sat Mar 21 1896)

8/1p2p3/1P2Q3/b1kN4/P3p3/2pPK3/2B5/8

#2

7 + 6

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Kxe4?
      • 1...Bxb6
        • 2.Qxb6#
      • 1...Bb4!
    • 1.Sf4?
      • 1...Kb4
        • 2.Qxe7#
      • 1...exd3
        • 2.Sxd3#
      • 1...Bb4
        • 2.d4#
      • 1...Bxb6!
  • Keys
    • 1.Sb4!
      • 1...Kxb4
        • 2.Qxe7#
      • 1...Bxb4
        • 2.d4#
      • 1...Bxb6
        • 2.Qxe7#
      • 1...exd3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT,XP(b)
      • Vars
        • B(c);OGATE,XP(F)::QAB1(G),XB(c)
      • Refutation
        • B(c);
    • Try
      • S(E);
      • Vars
        • K(d);S_FLIGHT::QAB(G),XP(f)
        • P(b);XP(B)::S(E),XP(b)
        • B(c);SBLOCK::P(B)
      • Refutation
        • B(c);XP(F)
  • Actual
    • S(E);
    • Vars
      • K(d);S_FLIGHT,XS(E)::QAB(G),XP(f)
      • B(c);SBLOCK,XS(E)::P(B)
      • B(c);SBLOCK,XP(F)::QAB(G),XP(f)
      • P(b);XP(B)::S(E),XP(b)
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