MESON Chess Problem Database

Problem Display
PID: 31186 (4Q3/4p3/4n3/4PR1p/3Pk2K/1P2p2p/2P1N2P/8 w - - 0 1)

Trcala, Stanislav

Das neue illustrierte Blatt, 1903

4Q3/4p3/4n3/4PR1p/3Pk2K/1P2p2p/2P1N2P/8

#2

9 + 6

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qa8#
  • Tries
    • 1.Sc3+?
      • 1...Kxf5
        • 2.Qf7#
      • 1...Kxd4!
    • 1.Sg3+?
      • 1...Kd5
        • 2.Qd7#
      • 1...Kxd4!
    • 1.Rf4+?
      • 1...Kd5
        • 2.Sc3#
        • 2.Qd7#
        • 2.Qa8#
        • 2.c4#
      • 1...Sxf4!
    • 1.Qb5?
      • 1...Kxf5
        • 2.Qd3#
      • 1...Sxd4
        • 2.Sg3#
        • 2.Rf4#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sg5
        • 2.Rf4#
      • 1...Sc7
        • 2.Rf4#
      • 1...Sg7
        • 2.Rf4#
      • 1...Sd8
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
      • 1...Sc5!
    • 1.Qd7?
      • threat
        • 2.Sg3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Kxf5!
    • 1.Qf7?
      • 1...Sxd4
        • 2.Sc3#
        • 2.Sg3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sc5
        • 2.Rf4#
      • 1...Sg5
        • 2.Rf4#
      • 1...Sc7
        • 2.Rf4#
      • 1...Sg7
        • 2.Rf4#
      • 1...Sd8
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
      • 1...Kd5!
  • Keys
    • 1.Qg8!
      • 1...Kd5
        • 2.Qa8#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Sxd4
        • 2.Sg3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sc5
        • 2.Rf4#
      • 1...Sg5
        • 2.Rf4#
      • 1...Sc7
        • 2.Rf4#
      • 1...Sg7
        • 2.Rf4#
      • 1...Sd8
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(I)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(H)::QAR2(I)
      • Refutation
        • K(c);P-FLIGHT,XP(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(I)
      • Refutation
        • K(c);P-FLIGHT,XP(E)
    • Try
      • R(H);CHECK
      • Refutation
        • S(e);XR(H)
    • Try
      • Q(I);
      • Vars
        • K(c);S_FLIGHT,XR(H)::QAB(I)
        • S(e);N_GUARD::R1(H),XS(e)
        • S(e);N_GUARD::R1(H)
      • Refutation
        • S(e);
    • Try
      • Q(I);
      • Threat
        • S(B)
      • Vars
        • S(e);N_GUARD::R1(H),XS(e)
      • Refutation
        • K(c);P_SPINS(e),S_FLIGHT,XR(H)
    • Try
      • Q(I);
      • Vars
        • S(e);N_GUARD::R1(H),XS(e)
        • S(e);N_GUARD::R1(H)
      • Refutation
        • K(c);P_SPINS(e),S_FLIGHT
  • Actual
    • Q(I);
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT::QAB(I)
      • K(c);OGATEB,S_FLIGHT,XR(H)::QAB(I)
      • S(e);SBLOCK,XP(E)::S(B)
      • S(e);N_GUARD::R1(H),XS(e)
      • S(e);N_GUARD::R1(H)
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