MESON Chess Problem Database

Problem Display
PID: 93788 (b2Q2Bb/q1p4p/8/1p2k3/1B1N4/3p1pK1/3N1P2/1r1n4 w - - 0 1)

Jarosz, Oswald

Ceske listy sachove, 1900

b2Q2Bb/q1p4p/8/1p2k3/1B1N4/3p1pK1/3N1P2/1r1n4

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Qg5#
    • 1...c6
      • 2.Qd6#
  • Tries
    • 1.S2xf3+?
      • 1...Ke4
        • 2.Bxh7#
        • 2.Qh4#
      • 1...Bxf3!
    • 1.Sc4+?
      • 1...Ke4
        • 2.Bxh7#
        • 2.Qh4#
      • 1...bxc4!
    • 1.S4xf3+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Bxf3!
    • 1.Qh4?
      • threat
        • 2.Qf4#
      • 1...Qxd4
        • 2.Qg5#
      • 1...Be4!
  • Keys
    • 1.Bd5!
      • threat
        • 2.S2xf3#
      • 1...Kxd4
        • 2.Sxf3#
      • 1...Qxd4
        • 2.Qg5#
      • 1...Bxd5
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(g);SBLOCK,XS(E)::QAR2(F)
    • P(h);N_GUARD::QAB1(F)
  • Tries
    • Try
      • S(A);CHECK,XP(d)
      • Refutation
        • B(j);XS(A)
    • Try
      • S(A);CHECK
      • Refutation
        • P(e);XS(A)
    • Try
      • S(E);CHECK,XP(d)
      • Vars
        • K(f);P-FLIGHT::QAR1(F)
      • Refutation
        • B(j);XS(E)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • Q(g);SBLOCK,XS(E)::QAR2(F)
      • Refutation
        • B(j);
  • Actual
    • B(G);
    • Threat
      • S(A),XP(d)
    • Vars
      • K(f);S_FLIGHT,XS(E)::S(A),XP(d)
      • Q(g);SBLOCK,XS(E)::QAR2(F)
      • B(j);SBLOCK,XB(G)::QAB(F),XB(k)
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Developed and maintained by Brian Stephenson.
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