MESON Chess Problem Database

Problem Display
PID: 94599 (8/4K3/4P3/4kp2/2Pp3R/3P2P1/Rp4P1/q7 w - - 0 1)

Laws, Benjamin Glover

British Chess Magazine, 1911

8/4K3/4P3/4kp2/2Pp3R/3P2P1/Rp4P1/q7

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Ra5#
    • 1...Qc1
      • 2.Ra5#
    • 1...Qd1
      • 2.Ra5#
    • 1...Qf1
      • 2.Ra5#
    • 1...Qg1
      • 2.Ra5#
    • 1...Qh1
      • 2.Ra5#
    • 1...b1Q
      • 2.Re2#
    • 1...b1S
      • 2.Re2#
    • 1...b1B
      • 2.Re2#
    • 1...b1R
      • 2.Re2#
    • 1...f4
      • 2.Rh5#
  • Keys
    • 1.Rh1!
      • 1...Qxh1
        • 2.Ra5#
      • 1...Qxa2
        • 2.Re1#
      • 1...f4
        • 2.Rh5#
      • 1...b1Q
        • 2.Re2#
      • 1...b1S
        • 2.Re1#
        • 2.Re2#
      • 1...b1B
        • 2.Re1#
        • 2.Re2#
      • 1...b1R
        • 2.Re2#
      • 1...Qb1
        • 2.Ra5#
      • 1...Qc1
        • 2.Ra5#
      • 1...Qd1
        • 2.Ra5#
      • 1...Qe1
        • 2.Rxe1#
      • 1...Qf1
        • 2.Ra5#
      • 1...Qg1
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(a);N_GUARD::R(A)
    • P(b);OGATE::R(A)
    • P(e);OGATEB::R(F)
  • Actual
    • R(F);
    • Vars
      • Q(a);N_GUARD,XR(F)::R(A)
      • Q(a);N_GUARD,XR(A)::R(F)
      • P(e);OGATEB::R(F)
      • P(b);OGATE::R(A)
      • Q(a);N_GUARD::R(A)
      • Q(a);N_GUARD::R(F),XQ(a)
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