MESON Chess Problem Database

Problem Display
PID: 162308 (2n1bQ2/1K1p4/3p4/2kB1N1R/PN2p3/2b1P3/5Pq1/1R6 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

1st Prize, Lviv-750 JT, 2006

2n1bQ2/1K1p4/3p4/2kB1N1R/PN2p3/2b1P3/5Pq1/1R6

#2

10 + 8

15652 Tehtavaniekka 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.exd4#
    • 1...Bxh5
      • 2.Qxc8#
    • 1...Bg6
      • 2.Qxc8#
    • 1...Bf7
      • 2.Qxc8#
    • 1...Sb6
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qxd6#
  • Tries
    • 1.Sd3+?
      • 1...exd3
        • 2.Rb5#
      • 1...Kxd5!
    • 1.Sg3?
      • threat
        • 2.Sa6#
      • 1...Bxb4
        • 2.Bf7#
      • 1...Bxh5
        • 2.Qxc8#
      • 1...Qf1
        • 2.Sxe4#
      • 1...Be5!
    • 1.Sd4?
      • threat
        • 2.Sa6#
      • 1...Bxb4
        • 2.Sb3#
      • 1...Bxh5
        • 2.Qxc8#
      • 1...Qf1
        • 2.Bf7#
      • 1...Qg5!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Sa6#
      • 1...Bxb4
        • 2.Sg3#
      • 1...Bxf7
        • 2.Qxc8#
      • 1...Qf1
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(b);OGATE::P(C),XB(b)
    • B(h);OGATE,XR(H)::QAR(J),XS(g)
    • B(h);OGATE::QAR(J),XS(g)
    • S(g);N_GUARD::QAB1(J),XP(e)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • P(c);P_PINB(F),XS(E)::R1(A)
      • Refutation
        • K(d);N_SPINP(e),P-FLIGHT,XB(F)
    • Try
      • S(G);
      • Threat
        • S(E)
      • Vars
        • B(b);N_GUARD,XS(E)::R(H)+B(F)
        • B(h);OGATE,XR(H)::QAR(J),XS(g)
        • Q(a);N_GUARD::S(G),XP(c)
      • Refutation
        • B(b);
    • Try
      • S(G);
      • Threat
        • S(E)
      • Vars
        • B(b);SBLOCK,XS(E)::S(G)
        • B(h);OGATE,XR(H)::QAR(J),XS(g)
        • Q(a);N_GUARD::R(H)+B(F)
      • Refutation
        • Q(a);
  • Actual
    • B(F);
    • Threat
      • S(E)
    • Vars
      • B(b);N_GUARD,XS(E)::R(H)+S(G)
      • B(h);OGATE,XB(F)::QAR(J),XS(g)
      • Q(a);N_GUARD::R(H)+S(G)
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Developed and maintained by Brian Stephenson.
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