MESON Chess Problem Database

Problem Display
PID: 103608 (8/3pR3/2pPbP2/2N1k2P/2P3P1/1Pn2P2/1B3K2/Q7 w - - 0 1)

Janocko, Jan

Slovensky Dennik, 1992

8/3pR3/2pPbP2/2N1k2P/2P3P1/1Pn2P2/1B3K2/Q7

#2

12 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd7+?
      • 1...Kd4
        • 2.Qd1#
      • 1...Kf4
        • 2.Bc1#
        • 2.Qc1#
      • 1...Kxd6!
    • 1.Bxc3+?
      • 1...Kf4
        • 2.Bd2#
        • 2.Qc1#
      • 1...Kxd6!
    • 1.Qc1?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxf6
        • 2.Bxc3#
      • 1...Kxd6!
  • Keys
    • 1.Qa5!
      • 1...Kd4
        • 2.Bxc3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kxd6
        • 2.Sb7#
      • 1...Kxf6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK,XP(e)
      • Vars
        • K(b);N_SPINB(d),S_FLIGHT::QAR(A)
      • Refutation
        • K(b);N_SPINB(d),N_SPINS(a),S_FLIGHT,XP(J)
    • Try
      • B(B);CHECK,XS(a)
      • Refutation
        • K(b);N_SPINB(d),S_FLIGHT,XP(J)
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINB(d),S_FLIGHT::QAB1(A)
        • K(b);N_SPINB(d),S_FLIGHT,XP(K)::B(B),XS(a)
      • Refutation
        • K(b);N_SPINB(d),N_SPINS(a),S_FLIGHT,XP(J)
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINB(d),S_FLIGHT::B(B),XS(a)
      • K(b);N_SPINB(d),N_SPINS(a),S_FLIGHT::S(H)
      • K(b);N_SPINB(d),N_SPINS(a),S_FLIGHT,XP(J)::S(H)
      • K(b);N_SPINB(d),S_FLIGHT,XP(K)::S(H)
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