MESON Chess Problem Database

Problem Display
PID: 136582 (1B6/4p2N/BQNqk3/1R1n1nR1/1p6/1Pp1p3/2P1P3/1K6 w - - 0 1)

Garby, R

The Field, 1919

(First published on Sat Aug 9 1919)

1B6/4p2N/BQNqk3/1R1n1nR1/1p6/1Pp1p3/2P1P3/1K6

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7
      • 2.Sd8#
  • Tries
    • 1.Sd8+?
      • 1...Ke5
        • 2.Qxe3#
      • 1...Kd7!
    • 1.Bc8+?
      • 1...Qd7
        • 2.Sd8#
      • 1...Kf7!
  • Keys
    • 1.Se5!
      • 1...Kxe5
        • 2.Qxe3#
      • 1...Qxb6
        • 2.Bc8#
      • 1...Sxb6
        • 2.Rg6#
      • 1...Qc6
        • 2.Bc8#
      • 1...Sf4
        • 2.Bc8#
      • 1...Sf6
        • 2.Sf8#
      • 1...Sc7
        • 2.Bc8#
        • 2.Rg6#
      • 1...Sg3
        • 2.Bc8#
      • 1...Sd4
        • 2.Bc8#
      • 1...Sh4
        • 2.Bc8#
      • 1...Sh6
        • 2.Bc8#
      • 1...Sg7
        • 2.Bc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • Q(f);SBLOCK::QAR(H)+S(I),DCHECK
  • Tries
    • Try
      • S(I);CHECK,P_PINQ(f)
      • Vars
        • K(g);P-FLIGHT,P_SPINS(d)::QAR2(H),XP(b)
      • Refutation
        • K(g);N_SPINQ(f),S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • Q(f);P_SPINQ(f)::QAR(H)+S(I),DCHECK
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • S(I);P_PINQ(f)
    • Vars
      • K(g);OGATEB,P-FLIGHT,P_SPINS(d),XS(I)::QAR2(H),XP(b)
      • Q(f);N_SPINQ(f),XQ(H)::B(G)
      • S(d);N_GUARD,N_SPINQ(f),XQ(H)::R(F)
      • Q(f);::B(G)
      • S(d);::B(G)
      • S(d);SBLOCK::S(J)
      • S(e);::B(G)
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