MESON Chess Problem Database

Problem Display
PID: 31137 (8/8/1p3ppK/2B1kP2/2P2R2/1Q3p1P/3P2n1/8 w - - 0 1)

Trcala, Stanislav

Ceske listy sachove, 1899

8/8/1p3ppK/2B1kP2/2P2R2/1Q3p1P/3P2n1/8

#2

8 + 6

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sh4
      • 2.Qe3#
    • 1...bxc5
      • 2.Qb8#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qe4#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Sxf4
        • 2.d4#
      • 1...gxf5
        • 2.Qxf5#
      • 1...bxc5!
    • 1.Qd3?
      • threat
        • 2.Bd6#
        • 2.Qe4#
        • 2.Qd4#
        • 2.Qd6#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Sxf4
        • 2.Bd6#
      • 1...gxf5
        • 2.Qxf5#
        • 2.Qd6#
      • 1...bxc5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qe4#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Sxf4
        • 2.d4#
      • 1...bxc5
        • 2.Qb8#
      • 1...gxf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR2(B)
    • S(a);N_GUARD::QAR2(B),XS(a)
    • P(d);OGATE,XB(F)::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);S_FLIGHT,XR(E)::B(F)
        • S(a);SBLOCK,XR(E)::P(A)
        • P(f);OGATE,XP(G)::QAR1(B),XP(f)
      • Refutation
        • P(d);XB(F)
    • Try
      • Q(B);
      • Threat
        • DUALS(4)
      • Vars
        • K(c);S_FLIGHT,XR(E)::B(F)
        • S(a);SBLOCK,XR(E)::B(F)
      • Refutation
        • P(d);XB(F)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);S_FLIGHT,XR(E)::B(F)
      • S(a);SBLOCK,XR(E)::P(A)
      • P(d);OGATE,XB(F)::QAB(B)
      • P(f);OGATE,XP(G)::QAR1(B),XP(f)
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