MESON Chess Problem Database

Problem Display
PID: 89930 (6B1/1Q1p4/p2P4/rnrN1N2/q1kB4/p7/P3P2K/8 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 1995

6B1/1Q1p4/p2P4/rnrN1N2/q1kB4/p7/P3P2K/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Sde3#
      • 2.Sb6#
    • 1...Sc3
      • 2.Sde3#
    • 1...Sxd4
      • 2.Sfe3#
    • 1...Sxd6
      • 2.Sde3#
    • 1...Sa7
      • 2.Sde3#
    • 1...Sc7
      • 2.Sde3#
  • Tries
    • 1.Sf4+?
      • 1...Kb4
        • 2.Sd3#
      • 1...Rd5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxc5#
      • 1...Rxd5
        • 2.Qc5#
      • 1...Sxd4
        • 2.Sfe3#
      • 1...Sxd6
        • 2.Sde3#
      • 1...Qb4
        • 2.Sde3#
      • 1...Rc6
        • 2.Sfe3#
      • 1...Rc7
        • 2.Sfe3#
      • 1...Rc8
        • 2.Sfe3#
      • 1...Sc3
        • 2.Sde3#
      • 1...Sa7
        • 2.Sde3#
      • 1...Sc7
        • 2.Sde3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(e);::B(I)+S(E),DCHECK
    • S(e);SBLOCK,XB(D)::S(F)
    • S(e);XP(G)::B(I)+S(E),DCHECK
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(e)::S(E)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XR(f)
    • Vars
      • R(f);P_SPINR(f),XS(E)::QAR1(H)
      • S(e);SBLOCK,XB(D)::S(F)
      • S(e);XP(G)::B(I)+S(E),DCHECK
      • Q(b);SBLOCK::B(I)+S(E),DCHECK
      • R(f);::S(F)
      • S(e);::B(I)+S(E),DCHECK
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