MESON Chess Problem Database

Problem Display
PID: 271432 (8/8/B4P2/1rB2QKp/q1k3nR/b1P5/2PP4/8 w - - 0 1)

Artz, MDL

Probleemblad, 1951

8/8/B4P2/1rB2QKp/q1k3nR/b1P5/2PP4/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc5
      • 2.Qd3#
      • 2.Qe6#
  • Tries
    • 1.Kxh5?
      • threat
        • 2.Rxg4#
      • 1...Bxc5
        • 2.Qd3#
        • 2.Qe6#
      • 1...Qxc2!
    • 1.Qe5?
      • threat
        • 2.Qd4#
        • 2.d3#
      • 1...Bxc5
        • 2.Qe6#
        • 2.d3#
      • 1...Bc1
        • 2.Qd4#
      • 1...Qxc2!
  • Keys
    • 1.Bd4!
      • threat
        • 2.d3#
      • 1...Qxc2
        • 2.Qxb5#
      • 1...Se5
        • 2.Qe6#
      • 1...Bc1
        • 2.Qc5#
      • 1...Sf2
        • 2.Bxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(G);P-FLIGHT,XP(f)
      • Threat
        • R(D),XS(d)
      • Refutation
        • Q(b);XP(A)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);P_PINP(B)::QAR1(F)
      • Refutation
        • Q(b);XP(A)
  • Actual
    • B(E);N_PINS(d),P_SPINQ(F)
    • Threat
      • P(B)
    • Vars
      • Q(b);N_GUARD,XP(A)::QAB1(F),XR(e)
      • S(d);N_PINQ(F)::QAB(F)
      • B(a);N_GUARD,P_PINP(B)::QAR1(F)
      • S(d);OGATEB::R(D)+B(E),XS(d)
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