MESON Chess Problem Database

Problem Display
PID: 31173 (8/3Q4/pp6/pP1B4/k7/npP5/4n2K/R7 w - - 0 1)

Trcala, Stanislav

Nove parizske mody, 1900

8/3Q4/pp6/pP1B4/k7/npP5/4n2K/R7

#2

6 + 7

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qc4#
      • 1...Kxb5
        • 2.Qc6#
      • 1...axb5!
    • 1.Qc7?
      • threat
        • 2.Qc4#
      • 1...Kxb5
        • 2.Qc6#
      • 1...axb5!
  • Keys
    • 1.Bc6!
      • 1...Sxc3
        • 2.Qd4#
      • 1...axb5
        • 2.Bxb5#
      • 1...b2
        • 2.Qd1#
      • 1...Sc1
        • 2.Qg4#
        • 2.Qd4#
      • 1...Sg1
        • 2.Qg4#
        • 2.Qd4#
      • 1...Sg3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sf4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(d);N_SPINS(b),OGATEB,S_FLIGHT,XP(D)::QAB1(F)
      • Refutation
        • P(f);XP(D)
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(d);N_SPINS(b),OGATEB,S_FLIGHT,XP(D)::QAB1(F)
      • Refutation
        • P(f);XP(D)
  • Actual
    • B(E);
    • Vars
      • S(a);N_GUARD,XP(C)::QAR(F)
      • P(f);OGATE,P_SPINP(f),XP(D)::B(E),XP(f)
      • P(c);OGATEB::QAB(F)
      • S(a);N_GUARD::QAR(F)
      • S(a);N_GUARD::QAR(F),XS(a)
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