MESON Chess Problem Database

Problem Display
PID: 68496 (b7/b4BBp/Q3N2p/8/4k3/3R4/2P2n1P/1N3K2 w - - 0 1)

Colville, Robert A

Source?, 0000

b7/b4BBp/Q3N2p/8/4k3/3R4/2P2n1P/1N3K2

#2

9 + 6

187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd3
      • 2.Qxd3#
  • Tries
    • 1.Rd4+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5
        • 2.Rf4#
      • 1...Bxd4!
    • 1.Qc4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Bd4!
    • 1.Qa4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Bd4!
  • Keys
    • 1.Rf3!
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kd5
        • 2.Sc3#
      • 1...Be3
        • 2.Qxa8#
      • 1...Bd4
        • 2.Qxa8#
      • 1...Bc5
        • 2.Qxa8#
      • 1...Bb6
        • 2.Qxa8#
      • 1...Bb8
        • 2.Qxa8#
      • 1...Bd5
        • 2.Sd2#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sh3
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#
      • 1...h5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,XR(E)::QAB1(F),XS(a)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
        • K(b);S_FLIGHT::QAB1(F)
        • K(b);OGATE,S_FLIGHT::R1(E)
      • Refutation
        • B(d);XR(E)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • B(d);P_SPINB(d)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • R(E);
    • Vars
      • K(b);S_FLIGHT,XR(E)::QAB1(F)
      • K(b);S_FLIGHT::S(A)
      • B(d);OGATE::QAB(F),XB(f)
      • B(f);SBLOCK::S(A)
      • B(f);N_GUARD::QAB(F),XB(f)
      • S(a);N_GUARD::QAB1(F)
      • S(a);N_GUARD::QAB1(F),XS(a)
      • P(c);N_GUARD::S(G)
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