MESON Chess Problem Database

Problem Display
PID: 175658 (6N1/3pR3/4q2R/1K2kN2/2P4p/4B2P/3P4/8 w - - 0 1)

Moon, James Frank

San Francisco Chronicle, 1900

6N1/3pR3/4q2R/1K2kN2/2P4p/4B2P/3P4/8

#2

9 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3?
      • 1...Kd6
        • 2.Bf4#
      • 1...Qxe7
        • 2.d4#
      • 1...d5
        • 2.Rhxe6#
        • 2.Rexe6#
      • 1...d6
        • 2.Rh5#
        • 2.Rhxe6#
        • 2.Rexe6#
        • 2.d4#
      • 1...hxg3!
    • 1.Rhxe6+?
      • 1...Kxf5
        • 2.Sh6#
        • 2.Rf6#
      • 1...dxe6!
    • 1.Rexe6+?
      • 1...Kxf5
        • 2.Se7#
        • 2.Rhf6#
      • 1...dxe6!
  • Keys
    • 1.Sd6!
      • 1...Kxd6
        • 2.Bf4#
      • 1...Qxe7
        • 2.d4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(b);S_FLIGHT::B(B)
        • Q(c);N_SPINQ(c),XR(H)::P(A)
      • Refutation
        • P(a);XS(F)
    • Try
      • R(G);CHECK,XQ(c)
      • Refutation
        • P(d);P_SPINP(d),XR(G)
    • Try
      • R(H);CHECK,XQ(c)
      • Refutation
        • P(d);XR(H)
  • Actual
    • S(F);
    • Vars
      • K(b);S_FLIGHT,XS(F)::B(B)
      • Q(c);N_SPINQ(c),XR(H)::P(A)
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