MESON Chess Problem Database

Problem Display
PID: 194237 (8/5n2/8/b3pp2/4N2Q/3p1kPP/5B2/5K2 w - - 0 1)

Wurzburg, Otto

Pittsburgh Gazette-Times, 1917

8/5n2/8/b3pp2/4N2Q/3p1kPP/5B2/5K2

#2

6 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bb6
      • 2.Sd2#
    • 1...Bc7
      • 2.Sd2#
    • 1...Bd8
      • 2.Sd2#
    • 1...Sg5
      • 2.Sxg5#
    • 1...Sd6
      • 2.Sg5#
    • 1...Sh6
      • 2.Sg5#
    • 1...Sd8
      • 2.Sg5#
    • 1...Sh8
      • 2.Sg5#
    • 1...fxe4
      • 2.Qf6#
      • 2.Qg4#
      • 2.Qh5#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qxf5#
      • 1...Kxe4
        • 2.Qc6#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Sd6
        • 2.Sg5#
      • 1...Sh6
        • 2.Sg5#
      • 1...f4!
    • 1.Qh6?
      • threat
        • 2.Qe3#
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sxh6
        • 2.Sg5#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Bb6
        • 2.Sd2#
      • 1...Sg5
        • 2.Sxg5#
      • 1...f4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxd3#
      • 1...Kxe4
        • 2.Qa8#
      • 1...Bxd8
        • 2.Sd2#
      • 1...Sxd8
        • 2.Sg5#
      • 1...fxe4
        • 2.Qf6#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Bb6
        • 2.Sd2#
      • 1...Sd6
        • 2.Sg5#
      • 1...d2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::S(E),XB(c)
    • B(c);N_GUARD::S(E)
    • S(f);N_GUARD::S(E),XS(f)
    • S(f);N_GUARD::S(E)
  • Tries
    • Try
      • Q(F);P_PINP(e)
      • Threat
        • QAR2(F),XP(e)
      • Vars
        • K(b);N_SPINP(e),OGATEB,S_FLIGHT,XS(E)::QAB(F)
        • B(c);N_GUARD::S(E),XB(c)
        • S(f);N_GUARD::S(E)
      • Refutation
        • P(e);
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(F)
        • S(f);N_GUARD,XQ(F)::S(E)
        • B(c);N_GUARD::S(E),XB(c)
        • B(c);N_GUARD::S(E)
        • S(f);N_GUARD::S(E),XS(f)
      • Refutation
        • P(e);
  • Actual
    • Q(F);
    • Threat
      • QAR2(F),XP(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(F)
      • B(c);N_GUARD,XQ(F)::S(E)
      • S(f);N_GUARD,XQ(F)::S(E)
      • P(e);OGATEB,SBLOCK,XS(E)::QAR(F)
      • B(c);N_GUARD::S(E),XB(c)
      • B(c);N_GUARD::S(E)
      • S(f);N_GUARD::S(E)
      • P(a);::QAR2(F)
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Developed and maintained by Brian Stephenson.
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