MESON Chess Problem Database

Problem Display
PID: 187767 (8/7B/1Np5/1pN3Q1/bb1kP3/8/1P6/6K1 w - - 0 1)

Seib, Wilhelm

Chess Weekly, 1909

8/7B/1Np5/1pN3Q1/bb1kP3/8/1P6/6K1

#2

7 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Kxc5!
    • 1.Qg3?
      • threat
        • 2.Se6#
      • 1...Bxc5
        • 2.Qc3#
      • 1...Bb3
        • 2.Sxb3#
      • 1...Kxc5!
  • Keys
    • 1.e5!
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qe3#
      • 1...Bxc5
        • 2.Qf4#
      • 1...Bb3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
    • Try
      • Q(E);
      • Threat
        • S(D)
      • Vars
        • B(b);N_GUARD,XS(D)::QAB1(E)
        • B(a);N_GUARD::S(D),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
  • Actual
    • P(C);
    • Threat
      • S(D)
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB(E)
      • B(b);SBLOCK,XS(D)::QAR2(E)
      • B(a);N_GUARD::S(D),XB(a)
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