MESON Chess Problem Database

Problem Display
PID: 15823 (3b4/4p3/8/5p2/4kr2/1KR1NN2/2R4B/7Q w - - 0 1)

Mlynka, Karol

1/2 Prize, Galitzky MT, 1988

3b4/4p3/8/5p2/4kr2/1KR1NN2/2R4B/7Q

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke5!
    • 1.Sg5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke5!
    • 1.Rd2?
      • threat
        • 2.Rd4#
      • 1...Rxf3
        • 2.Qb1#
      • 1...e5
        • 2.Sg5#
      • 1...Bb6!
    • 1.Qa1?
      • threat
        • 2.Qa8#
      • 1...Kxf3
        • 2.Qh1#
      • 1...Rxf3
        • 2.Qa4#
      • 1...Ba5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Rf2#
      • 1...Kxf3
        • 2.Qh1#
      • 1...Rxf3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(b)
    • Try
      • S(G);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(b)
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • R(b);P_SPINR(b),SBLOCK,XS(G)::QAB(A)
        • P(d);SBLOCK::QAB(A)+S(G),DCHECK
      • Refutation
        • B(e);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(G)::QAB(A)
        • R(b);SBLOCK,XS(G)::QAR(A)
      • Refutation
        • B(e);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(B)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • R(b);SBLOCK,XS(G)::QAB(A)+R(B)
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