MESON Chess Problem Database

Problem Display
PID: 27796 (1B3K2/1Q1P4/2R5/8/7N/6pq/4NP1k/8 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

1B3K2/1Q1P4/2R5/8/7N/6pq/4NP1k/8

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bxg3+?
      • 1...Kh1
        • 2.Rc1#
      • 1...Qxg3!
  • Keys
    • 1.Rh6!
      • 1...Qf5+
        • 2.Sxf5#
      • 1...Qxd7
        • 2.Sf5#
        • 2.Qg2#
      • 1...Qxh4
        • 2.Rxh4#
      • 1...Qf1
        • 2.Sg2#
      • 1...Qg2
        • 2.Sxg2#
        • 2.Sf3#
        • 2.Qxg2#
      • 1...Qg4
        • 2.Qg2#
      • 1...Qe6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::QAB(E)+R(D),DCHECK
      • Refutation
        • Q(c);XB(G)
  • Actual
    • R(D);
    • Vars
      • Q(c);CHECK::R(D)+S(C),XQ(c)
      • Q(c);OGATE,P_SPINQ(c),XS(C)::R(D),XQ(c)
      • Q(c);P_PINP(B)::R(D)+S(C)
      • Q(c);N_GUARD::QAR1(E)
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