MESON Chess Problem Database

Problem Display
PID: 271411 (4nNN1/3p4/3b2p1/1r3k1p/1pR2B2/6P1/4Q3/1b2K3 w - - 0 1)

Westbury, Eric Ernest

Leeds Mercury, 1902

4nNN1/3p4/3b2p1/1r3k1p/1pR2B2/6P1/4Q3/1b2K3

#2

7 + 9

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Sh6#
    • 1...h4
      • 2.g4#
  • Tries
    • 1.Qxh5+?
      • 1...g5
        • 2.Qxg5#
        • 2.g4#
      • 1...gxh5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qh3#
      • 1...Re5+
        • 2.Be3#
      • 1...Kg4
        • 2.Sh6#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Sf6
        • 2.Sh6#
      • 1...g5
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(i);SBLOCK::S(G)
    • P(e);N_GUARD::P(C)
  • Tries
    • Try
      • Q(B);CHECK,XP(e)
      • Refutation
        • P(g);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(c);CHECK,SBLOCK,S_CUTB(f)::QAR(B)+B(E)
      • K(d);N_GUARD,S_FLIGHT::S(G)
      • B(f);OGATE,P_SPINB(f),XB(E)::QAR1(B),XB(f)
      • S(i);SBLOCK::S(G)
      • P(g);SBLOCK::QAR(B)+B(E),XB(f)
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