MESON Chess Problem Database

Problem Display
PID: 141191 (6B1/2Q5/1p6/qPNN3K/3k2p1/P7/1p2PP2/1n1b4 w - - 0 1)

Fridlizius, Joel

4th Prize, Sporten, 1893

6B1/2Q5/1p6/qPNN3K/3k2p1/P7/1p2PP2/1n1b4

#2

9 + 7

14868 Pirnie Collection 2011
3770 BCSC Postal 2011-2012

SOLUTION

  • SOUND
  • Sets
    • 1...bxc5
      • 2.Qf4#
  • Tries
    • 1.Sb3+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Bxb3!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Sc3#
        • 2.Sc7#
      • 1...Kxc5
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Kxe5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Se6#
      • 1...Kxc3
        • 2.Sb3#
      • 1...Qxc3
        • 2.Qd6#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Bxe2
        • 2.Sxe2#
      • 1...Sxc3
        • 2.e3#
      • 1...bxc5
        • 2.Qg7#
      • 1...Bb3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(g);SBLOCK,XS(E)::QAR2(H)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(H)
      • Refutation
        • B(b);XS(E)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(H)
  • Actual
    • S(F);
    • Threat
      • S(E)
    • Vars
      • K(d);S_FLIGHT,XS(F)::QAR(H)+S(E)
      • Q(f);SBLOCK,XS(F)::QAR2(H)
      • Q(f);P_PINS(E),XP(D)::S(F),XQ(f)
      • B(b);XP(A)::S(F),XB(b)
      • S(a);SBLOCK,XS(F)::P(A)
      • P(g);SBLOCK,XS(E)::QAB(H)
      • B(b);N_GUARD::S(E),XB(b)
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