MESON Chess Problem Database

Problem Display
PID: 10965 (6K1/2Q5/p2Nk1p1/6P1/8/3N1P2/8/8 w - - 0 1)

Otten, Henry

International Chess Magazine, 1885

6K1/2Q5/p2Nk1p1/6P1/8/3N1P2/8/8

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qf7#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Se4?
      • threat
        • 2.Qf7#
      • 1...Kf5
        • 2.Qe5#
        • 2.Qd7#
        • 2.Qf7#
        • 2.Qc8#
      • 1...Kd5!
    • 1.Sb5?
      • threat
        • 2.Qf7#
      • 1...Kd5
        • 2.Sf4#
      • 1...Kf5
        • 2.Qe5#
      • 1...axb5!
    • 1.Sb7?
      • threat
        • 2.Qf7#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Sc8?
      • threat
        • 2.Qf7#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Se8?
      • threat
        • 2.Qf7#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kd5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qf7#
      • 1...Kd5
        • 2.Sf4#
      • 1...Kxf5
        • 2.Qe5#
      • 1...gxf5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::S(A)
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • P(a);XS(D)
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAB1(E)
    • Vars
      • K(b);S_FLIGHT::S(A)
      • K(b);S_FLIGHT,XS(D)::QAR1(E)
      • P(c);SBLOCK,XS(D)::S(A)
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