MESON Chess Problem Database

Problem Display
PID: 174989 (8/2K3Q1/N2p4/3k1p1p/5p1R/4p3/P3P3/3N4 w - - 0 1)

Telford, James

Philadelphia Times, 1901

8/2K3Q1/N2p4/3k1p1p/5p1R/4p3/P3P3/3N4

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sc3#
  • Tries
    • 1.Kd7?
      • 1...Ke4
        • 2.Sc3#
      • 1...f3
        • 2.Sc3#
        • 2.Sxe3#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Kc4!
    • 1.Sc3+?
      • 1...Kc4
        • 2.Rxf4#
      • 1...Ke6!
    • 1.Qf6?
      • 1...Ke4
        • 2.Sc3#
      • 1...f3
        • 2.Sc3#
        • 2.Sxe3#
        • 2.Rd4#
        • 2.Qxf5#
        • 2.Qxd6#
      • 1...Kc4!
  • Keys
    • 1.Kb6!
      • 1...Kc4
        • 2.Sxe3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.Sc7#
      • 1...f3
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(b),S_FLIGHT::S(A)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(A)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::R(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(A)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
  • Actual
    • K(F);S_FLIGHT
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::S(A),XP(a)
      • K(c);P_SPINP(b),S_FLIGHT::S(A)
      • K(c);S_FLIGHT::S(E)
      • P(b);::S(E)
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