MESON Chess Problem Database

Problem Display
PID: 93140 (8/8/pQP2pKb/3krP2/BPNrp3/1npqp3/P7/8 w - - 0 1)

Grabowski, Kazimierz

Tidskrift for Schack, 1916

8/8/pQP2pKb/3krP2/BPNrp3/1npqp3/P7/8

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Bxb3#
    • 1...Qxc4
      • 2.Qd8#
    • 1...Rxc4
      • 2.Qd8#
    • 1...Sa1
      • 2.Qc5#
    • 1...Sc1
      • 2.Qc5#
    • 1...Sd2
      • 2.Qc5#
    • 1...Sa5
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
  • Tries
    • 1.Qa5+?
      • 1...Kxc4
        • 2.Bxb3#
        • 2.axb3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxa5!
    • 1.Qc7?
      • threat
        • 2.Sb6#
      • 1...Qxc4
        • 2.Qd8#
        • 2.Qd7#
      • 1...Rxc4
        • 2.Qd8#
        • 2.Qd7#
      • 1...Rxf5
        • 2.Qf7#
      • 1...Kxc4!
    • 1.Qb5+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...axb5!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Sb6#
      • 1...Kxc4
        • 2.Bxb3#
      • 1...Qxc4
        • 2.Qd8#
      • 1...Rxc4
        • 2.Qd8#
      • 1...Rxf5
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(g);OGATEB,S_FLIGHT,XS(D)::B(B),XS(a)
    • Q(c);SBLOCK,XS(D)::QAR(F)
    • R(e);SBLOCK,XS(D)::QAR(F)
    • S(a);N_GUARD::QAR1(F)
    • S(a);N_GUARD::QAR1(F),XS(a)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(F),XS(a)
      • Refutation
        • S(a);XQ(F)
    • Try
      • Q(F);
      • Threat
        • S(D)
      • Vars
        • R(h);N_GUARD,XP(E)::QAB(F)
      • Refutation
        • K(g);S_FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(F),XS(a)
      • Refutation
        • P(i);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • S(D)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XS(D)::B(B),XS(a)
      • Q(c);SBLOCK,XS(D)::QAR(F)
      • R(e);SBLOCK,XS(D)::QAR(F)
      • R(h);N_GUARD,XP(E)::QAB(F)
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