MESON Chess Problem Database

Problem Display
PID: 84194 (8/3K4/5p1B/4Pk2/Q1p1N3/8/2BP1P2/7R w - - 0 1)

Drazkowski, Krzysztof

Ring Tournament, 1989

8/3K4/5p1B/4Pk2/Q1p1N3/8/2BP1P2/7R

#2

9 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3+?
      • 1...Kg4
        • 2.Bd1#
      • 1...Kxe5!
    • 1.Sd6+?
      • 1...Kg4
        • 2.Bd1#
      • 1...Kxe5!
    • 1.Rh5+?
      • 1...Kg4
        • 2.Bd1#
      • 1...Kg6!
    • 1.Qc6?
      • 1...Kg4
        • 2.Sxf6#
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kg6
        • 2.Sg5#
      • 1...fxe5
        • 2.Qe6#
      • 1...c3!
  • Keys
    • 1.Qxc4!
      • 1...Kg4
        • 2.Sg5#
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kg6
        • 2.Sxf6#
      • 1...fxe5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • R(A);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::S(F),XP(c)
        • K(b);OGATEB,P-FLIGHT,XP(G)::QAR2(E)
        • K(b);P_SPINP(c),S_FLIGHT::B(B)+S(F)
        • P(c);XP(G)::QAB1(E)
      • Refutation
        • P(a);
  • Actual
    • Q(E);XP(a)
    • Vars
      • K(b);S_FLIGHT::QAR(E)+S(F)
      • K(b);OGATEB,P-FLIGHT,XP(G)::QAR2(E)
      • K(b);S_FLIGHT::B(B)+S(F),XP(c)
      • P(c);XP(G)::QAB1(E)
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