MESON Chess Problem Database

Problem Display
PID: 270587 (6Q1/8/2p5/3Np3/b1kpN3/3p1P2/1K6/5B2 w - - 0 1)

Westbury, Eric Ernest

Manchester Weekly Times, 1900

6Q1/8/2p5/3Np3/b1kpN3/3p1P2/1K6/5B2

#2

6 + 6

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sd6#
  • Tries
    • 1.Qf8?
      • threat
        • 2.Qc5#
      • 1...Kxd5
        • 2.Qf7#
        • 2.Qg8#
      • 1...c5
        • 2.Qxc5#
      • 1...Kb5!
  • Keys
    • 1.Qa8!
      • 1...Kb5
        • 2.Bxd3#
      • 1...Kxd5
        • 2.Qg8#
      • 1...cxd5
        • 2.Qxa4#
      • 1...Bd1
        • 2.Qxc6#
      • 1...Bc2
        • 2.Qxc6#
      • 1...Bb3
        • 2.Qxc6#
      • 1...Bb5
        • 2.Qa2#
      • 1...c5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(f);SBLOCK::S(D)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • P(f);::QAR1(F),XP(f)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::B(A),XP(a)
      • K(c);N_SPINP(a),OGATEB,P_SPINP(f),S_FLIGHT,XS(E)::QAB(F)
      • P(f);SBLOCK,XS(E)::QAR2(F),XB(b)
      • B(b);N_GUARD::QAR2(F),XP(f)
      • B(b);OGATE,SBLOCK::QAB(F)
      • P(f);SBLOCK::S(D)
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