MESON Chess Problem Database

Problem Display
PID: 175805 (K3Q3/6N1/3p1p2/4B3/2P1k1P1/7R/8/8 w - - 0 1)

Laws, Benjamin Glover

Philadelphia Times, 1898

K3Q3/6N1/3p1p2/4B3/2P1k1P1/7R/8/8

#2

7 + 3

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc6+?
      • 1...d5
        • 2.Qxd5#
      • 1...Kxe5!
    • 1.Qg6+?
      • 1...f5
        • 2.Qxf5#
      • 1...Kxe5!
  • Keys
    • 1.Se6!
      • 1...Kxe5
        • 2.Re3#
      • 1...dxe5
        • 2.Qc6#
      • 1...fxe5
        • 2.Qg6#
      • 1...d5
        • 2.Sc5#
      • 1...f5
        • 2.Sg5#

Anticipated by 24885(1889)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(G),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(G);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(G),XP(c)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
  • Actual
    • S(E);
    • Vars
      • K(a);P-FLIGHT,XB(D)::R(A)
      • P(b);N_GUARD,SBLOCK,XB(D)::QAB(G)
      • P(c);N_GUARD,SBLOCK,XB(D)::QAB(G)
      • P(b);N_GUARD::S(E)
      • P(c);N_GUARD::S(E)
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