MESON Chess Problem Database

Problem Display
PID: 23164 (8/8/8/3Q4/K7/2p5/2k5/R1bN4 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/3Q4/K7/2p5/2k5/R1bN4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Se3#
    • 1...Bd2
      • 2.Qe4#
      • 2.Qf5#
  • Tries
    • 1.Sf2?
      • 1...Kb2
        • 2.Qa2#
      • 1...Be3
        • 2.Qa2#
      • 1...Bb2
        • 2.Qd1#
        • 2.Qd3#
      • 1...Bd2
        • 2.Qa2#
        • 2.Qb3#
      • 1...Bf4
        • 2.Qa2#
      • 1...Bg5
        • 2.Qa2#
      • 1...Bh6
        • 2.Qa2#
      • 1...Ba3!
    • 1.Se3+?
      • 1...Kb2
        • 2.Qa2#
      • 1...Bxe3!
    • 1.Ra2+?
      • 1...Kb1
        • 2.Sxc3#
      • 1...Bb2!
  • Keys
    • 1.Qd4!
      • 1...Ba3
        • 2.Qxc3#
      • 1...Bb2
        • 2.Se3#
      • 1...Bd2
        • 2.Qe4#
      • 1...Be3
        • 2.Qxc3#
      • 1...Bf4
        • 2.Qxc3#
      • 1...Bg5
        • 2.Qxc3#
      • 1...Bh6
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,SBLOCK::S(B)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::QAR1(D)
        • B(a);N_GUARD::QAR2(D)
      • Refutation
        • B(a);
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(D)
      • Refutation
        • B(a);XS(B)
    • Try
      • R(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(B),XP(c)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(D);
    • Vars
      • B(a);::QAR1(D),XP(c)
      • B(a);N_GUARD,SBLOCK::S(B)
      • B(a);SBLOCK::QAB(D)
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Developed and maintained by Brian Stephenson.
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