MESON Chess Problem Database

Problem Display
PID: 94645 (8/3p4/5P2/1Ppk1P2/P4K2/1Np3BQ/2P3P1/8 w - - 0 1)

Wainwright, Joseph CJ

Lasker's Chess Magazine, 1906

8/3p4/5P2/1Ppk1P2/P4K2/1Np3BQ/2P3P1/8

#2

10 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Ke4#
  • Tries
    • 1.Qh5?
      • 1...Kd6
        • 2.Ke4#
      • 1...c4
        • 2.Qd1#
      • 1...d6
        • 2.Qf7#
      • 1...Kc4!
    • 1.Qh7?
      • 1...Kd6
        • 2.Ke4#
      • 1...c4
        • 2.Qxd7#
      • 1...d6
        • 2.Qg8#
        • 2.Qf7#
      • 1...Kc4!
  • Keys
    • 1.Qg4!
      • 1...Kc4
        • 2.Ke5#
      • 1...Kd6
        • 2.Ke4#
      • 1...c4
        • 2.Qd1#
      • 1...d6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::B(D)+K(G)
  • Tries
    • Try
      • Q(E);
      • Vars
        • K(c);P-FLIGHT::B(D)+K(G)
        • P(b);SBLOCK::QAR(E)
        • P(d);SBLOCK::QAB(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(c);P-FLIGHT::B(D)+K(G)
        • P(b);SBLOCK::QAR2(E),XP(d)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(c);S_FLIGHT::QAR(E)+K(G)
      • K(c);P-FLIGHT::B(D)+K(G)
      • P(b);SBLOCK::QAR(E)
      • P(d);SBLOCK::QAB(E)
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