MESON Chess Problem Database

Problem Display
PID: 63850 (5r2/1b6/4N3/1Q6/2p1k1pp/2P5/3P1P2/2NB3K w - - 0 1)

Williams, Philip Hamilton

Chess Amateur (The), 1909

5r2/1b6/4N3/1Q6/2p1k1pp/2P5/3P1P2/2NB3K

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Sg5#
  • Tries
    • 1.f3+?
      • 1...gxf3
        • 2.Bc2#
      • 1...Rxf3!
  • Keys
    • 1.f4!
      • threat
        • 2.Qe5#
      • 1...Rxf4
        • 2.Sg5#
      • 1...gxf4 ep
        • 2.Bc2#
      • 1...Bd5
        • 2.Qb1#
      • 1...Rf5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK::S(H)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • P(c);SBLOCK,XP(E)::B(B)
      • Refutation
        • R(f);XP(E)
  • Actual
    • P(E);
    • Threat
      • QAR1(G)
    • Vars
      • R(f);SBLOCK,XP(E)::S(H)
      • P(c);EP,XP(E)::B(B)
      • B(e);SBLOCK::QAB(G)
      • R(f);SBLOCK::QAR2(G),XP(a)
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