MESON Chess Problem Database

Problem Display
PID: 109215 (8/8/K4p2/4Pp2/3k4/1Q1p1PB1/6N1/8 w - - 0 1)

Williams, WP

North London Guardian, 1894

8/8/K4p2/4Pp2/3k4/1Q1p1PB1/6N1/8

#2

6 + 4

6490 yacpdb 2009
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...fxe5
      • 2.Bf2#
  • Tries
    • 1.Qc3+?
      • 1...Kd5
        • 2.Sf4#
      • 1...Kxc3!
  • Keys
    • 1.Sf4!
      • 1...Ke3
        • 2.Qxd3#
      • 1...Kc5
        • 2.Qc3#
      • 1...Kxe5
        • 2.Qd5#
      • 1...fxe5
        • 2.Bf2#
      • 1...d2
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK,XP(E)::B(D)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::S(A)
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • S(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAR1(B),XP(a)
      • K(b);S_FLIGHT::QAR2(B)
      • K(b);S_FLIGHT,XP(E)::QAR1(B)
      • P(d);SBLOCK,XP(E)::B(D)
      • P(a);::S(A)
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