MESON Chess Problem Database

Problem Display
PID: 196778 (1n6/8/3b4/N1p1k3/Q2N1p1B/5B2/4K1n1/8 w - - 0 1)

Schlechter, Carl

Deutsche Schachzeitung, 1919

1n6/8/3b4/N1p1k3/Q2N1p1B/5B2/4K1n1/8

#2

6 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Sac6#
    • 1...Sc6
      • 2.Saxc6#
    • 1...Sd7
      • 2.Sac6#
  • Tries
    • 1.Sdc6+?
      • 1...Kf5
        • 2.Qe4#
      • 1...Sxc6
        • 2.Qe4#
      • 1...Ke6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qg7#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Sxd7
        • 2.Sac6#
      • 1...cxd4
        • 2.Sc4#
      • 1...Bc7
        • 2.Sc4#
        • 2.Qd5#
      • 1...Be7
        • 2.Sc4#
        • 2.Qd5#
      • 1...Bf8
        • 2.Sc4#
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::S(F)
    • S(f);N_GUARD::S(F),XS(f)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(C)
        • S(f);XS(D)::QAR1(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • K(d);P_SPINB(e),S_FLIGHT,XS(D)::B(E)
      • S(f);N_GUARD,XQ(C)::S(F)
      • P(c);SBLOCK,XS(D)::S(F)
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