MESON Chess Problem Database

Problem Display
PID: 197726 (6N1/B1K1Q1N1/8/R1pb3B/3p1k2/8/7R/8 w - - 0 1)

Barnes, Barry Peter

The Problemist, 1981

6N1/B1K1Q1N1/8/R1pb3B/3p1k2/8/7R/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kg3
      • 2.Qh4#
      • 2.Qd6#
      • 2.Qe5#
  • Tries
    • 1.Rf2+?
      • 1...Bf3
        • 2.Rxf3#
      • 1...Kg3!
  • Keys
    • 1.Qxc5!
      • 1...Ke3
        • 2.Qxd4#
      • 1...Kg3
        • 2.Qd6#
      • 1...Ke4
        • 2.Qxd4#
      • 1...Ke5
        • 2.Qxd4#
      • 1...Kg5
        • 2.Qc1#
      • 1...Bxg8
        • 2.Qe5#
      • 1...Bh1
        • 2.Qe5#
      • 1...Ba2
        • 2.Qe5#
      • 1...Bg2
        • 2.Qe5#
      • 1...Bb3
        • 2.Qe5#
      • 1...Bf3
        • 2.Qe5#
      • 1...Bc4
        • 2.Qe5#
      • 1...Be4
        • 2.Qg5#
      • 1...Bc6
        • 2.Qe5#
      • 1...Be6
        • 2.Qe5#
      • 1...Bb7
        • 2.Qe5#
      • 1...Bf7
        • 2.Qe5#
      • 1...Ba8
        • 2.Qe5#
      • 1...d3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::R1(A),XB(d)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);XP(c)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAB1(F),XP(a)
      • K(b);S_FLIGHT::QAB(F)
      • K(b);P-FLIGHT::QAR1(F),XP(a)
      • K(b);P_SPINB(d),S_FLIGHT::QAB1(F),XP(a)
      • K(b);P_SPINB(d),S_FLIGHT::QAB(F)
      • B(d);OGATE,XS(H)::QAB1(F)
      • B(d);OGATE::QAB1(F)
      • B(d);OGATE,SBLOCK::QAB1(F)
      • P(a);OGATE::QAB1(F)
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