MESON Chess Problem Database

Problem Display
PID: 119938 (1b1k4/p1Np2N1/Bp6/1P2P3/8/8/2Q5/K7 w - - 0 1)

von Gottschall, Hermann

Leibziker Tageblatt, 1905

1b1k4/p1Np2N1/Bp6/1P2P3/8/8/2Q5/K7

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qc8#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Bxe5+!
    • 1.Sge6+?
      • 1...Ke7
        • 2.Qh7#
      • 1...dxe6!
    • 1.Qg6?
      • 1...Ke7
        • 2.Qe8#
        • 2.Qf6#
      • 1...Bxc7
        • 2.Qe8#
        • 2.Qg5#
        • 2.Qf6#
      • 1...d5
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...Kxc7!
    • 1.Qc5?
      • 1...Bxc7
        • 2.Qf8#
      • 1...d5
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...bxc5!
    • 1.Qc6?
      • 1...Ke7
        • 2.Qf6#
      • 1...Bxc7
        • 2.Qf6#
      • 1...d5
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...dxc6!
  • Keys
    • 1.Qh7!
      • 1...Kxc7
        • 2.Se6#
      • 1...Ke7
        • 2.Sge6#
      • 1...Bxc7
        • 2.Qh4#
      • 1...d5
        • 2.Sge6#
      • 1...d6
        • 2.Sge6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(B)
      • Vars
        • B(d);N_GUARD::QAB1(B),XB(d)
      • Refutation
        • B(d);CHECK,XP(D)
    • Try
      • S(G);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR(B)
      • Refutation
        • P(c);XS(G)
    • Try
      • Q(B);
      • Vars
        • P(c);OGATEB::QAR2(B)
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • K(e);S_FLIGHT,XS(F)
    • Try
      • Q(B);
      • Vars
        • B(d);SBLOCK,XS(F)::QAR2(B)
        • P(c);OGATEB::QAR2(B)
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • P(a);XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(e);S_FLIGHT::QAB1(B)
        • B(d);SBLOCK,XS(F)::QAB(B)
        • P(c);OGATEB::QAR2(B)
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(e);S_FLIGHT,XS(F)::S(G)
      • K(e);S_FLIGHT::QAR(B)+S(G)
      • B(d);SBLOCK,XS(F)::QAB(B)
      • P(c);N_GUARD::S(G)
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