MESON Chess Problem Database

Problem Display
PID: 44391 (8/4B2B/2P3p1/4pN2/R1N1kn2/Q1b2R2/8/5K2 w - - 0 1)

Gilberg, Charles Alexander

Chess Journal, 1887

8/4B2B/2P3p1/4pN2/R1N1kn2/Q1b2R2/8/5K2

#2

9 + 5

176 Crumbs from the Chess-board 1890
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Sxe5#
    • 1...Sd5
      • 2.Sd2#
  • Tries
    • 1.Sd2+?
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxf5!
    • 1.Sg3+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxf3!
    • 1.Re3+?
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxf5!
  • Keys
    • 1.Qb3!
      • 1...Kxf3
        • 2.Sxe5#
      • 1...Kd5
        • 2.Sa5#
      • 1...Kxf5
        • 2.Se3#
      • 1...gxf5
        • 2.Sd2#
      • 1...Ba1
        • 2.Scd6#
      • 1...Be1
        • 2.Scd6#
      • 1...Bb2
        • 2.Scd6#
      • 1...Bd2
        • 2.Scd6#
      • 1...Bb4
        • 2.Scd6#
      • 1...Bd4
        • 2.Scd6#
      • 1...Ba5
        • 2.Scd6#
      • 1...Se2
        • 2.Sd2#
      • 1...Sg2
        • 2.Sd2#
      • 1...Sd3
        • 2.Sd2#
      • 1...Sh3
        • 2.Sd2#
      • 1...Sd5
        • 2.Sd2#
      • 1...Sh5
        • 2.Sd2#
      • 1...Se6
        • 2.Sd2#
      • 1...g5
        • 2.Sd2#

There are these versions: 224314

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINB(a),S_FLIGHT,XR(C)::S(E),XP(d)
    • S(c);SBLOCK::R(D)+S(E),DCHECK
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P_SPINP(e),P_SPINS(c),S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK,P_PINP(e)
      • Vars
        • K(b);N_SPINP(e),P-FLIGHT::QAB1(B)
        • K(b);N_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(e),P_SPINB(a),S_FLIGHT,XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P_SPINP(e),S_FLIGHT,XS(F)
  • Actual
    • Q(B);
    • Vars
      • K(b);P_SPINB(a),S_FLIGHT,XR(C)::S(E),XP(d)
      • K(b);S_FLIGHT::QAB(B)+S(E)
      • K(b);P_SPINP(e),P_SPINS(c),S_FLIGHT,XS(F)::S(E)
      • P(e);P_SPINP(e),XS(F)::R(D)+S(E),DCHECK
      • B(a);::R(D)+S(E),DCHECK
      • B(a);::S(E)
      • S(c);::R(D)+S(E),DCHECK
      • P(e);::R(D)+S(E),DCHECK
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