MESON Chess Problem Database

Problem Display
PID: 82466 (4K3/1pBP1p2/bP1N4/q3kP2/8/bN3Q2/3P4/8 w - - 0 1)

Havel, Miroslav

Ceske listy sachove, 1899

4K3/1pBP1p2/bP1N4/q3kP2/8/bN3Q2/3P4/8

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f6
      • 2.Sc4#
      • 2.Sf7#
      • 2.Qe4#
      • 2.d4#
  • Tries
    • 1.Kxf7?
      • threat
        • 2.Sc4#
        • 2.Qe4#
        • 2.d4#
      • 1...Bc4+
        • 2.Sxc4#
      • 1...Qxd2
        • 2.Sc4#
        • 2.Qe4#
      • 1...Qxb6
        • 2.Sc4#
        • 2.Qe4#
      • 1...Bxd6
        • 2.d4#
      • 1...Qc3
        • 2.Sc4#
        • 2.Qe4#
      • 1...Qb4
        • 2.Sc4#
      • 1...Qa4
        • 2.Sc4#
      • 1...Qc5
        • 2.Sc4#
        • 2.Qe4#
      • 1...Bb2
        • 2.Sc4#
        • 2.Sb5#
        • 2.Sxb7#
        • 2.Sc8#
        • 2.Se8#
        • 2.Qe4#
      • 1...Bc5
        • 2.Sc4#
        • 2.Qe4#
      • 1...Bd3
        • 2.Sc4#
      • 1...Qd5+!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kf6!
    • 1.Qg3+?
      • 1...Kf6
        • 2.Bd8#
        • 2.d8Q#
        • 2.d8B#
      • 1...Kd5!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Sxf7#
      • 1...Kxd6
        • 2.Bc7#
      • 1...Bxd6
        • 2.d4#
      • 1...Qd5
        • 2.Qg3#
      • 1...Bc4
        • 2.Sxc4#
      • 1...f6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);S_FLIGHT,XP(f)
      • Threat
        • DUALS(3)
      • Vars
        • B(d);CHECK::B(G)+S(F),DCHECK,XB(d)
        • B(a);P_SPINB(a),XS(F)::P(A)
        • Q(b);::B(G)+S(F),DCHECK
        • B(d);::B(G)+S(F),DCHECK
      • Refutation
        • Q(b);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • B(G);
    • Threat
      • S(F),XP(f)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::B(G)
      • B(a);SBLOCK,XS(F)::P(A)
      • Q(b);SBLOCK::QAB(C)
      • B(d);N_GUARD::S(F),XB(d)
      • P(f);::S(F)
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