MESON Chess Problem Database

Problem Display
PID: 43677 (8/5Q2/5bP1/3pNnp1/3Pk1P1/5R1P/4N3/1n2K3 w - - 0 1)

Fox, Charles Masson

The Problemist, 1928

8/5Q2/5bP1/3pNnp1/3Pk1P1/5R1P/4N3/1n2K3

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Qxf5#
    • 1...Be7
      • 2.Qxf5#
    • 1...Bg7
      • 2.Qxf5#
    • 1...Bd8
      • 2.Qxf5#
    • 1...Bh8
      • 2.Qxf5#
  • Tries
    • 1.Sc3+?
      • 1...Kxd4
        • 2.Qxd5#
      • 1...Sxc3!
  • Keys
    • 1.Sc4!
      • 1...Kxf3
        • 2.Qxd5#
      • 1...Bxd4
        • 2.Qxf5#
      • 1...Sxd4
        • 2.Re3#
      • 1...dxc4
        • 2.Qb7#
      • 1...Se3
        • 2.Rxe3#
      • 1...Be5
        • 2.Qxf5#
      • 1...Be7
        • 2.Qxf5#
      • 1...Bg7
        • 2.Qxf5#
      • 1...Bd8
        • 2.Qxf5#
      • 1...Bh8
        • 2.Qxf5#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sa3
        • 2.Sd2#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sg3
        • 2.Re3#
      • 1...Sh4
        • 2.Re3#
      • 1...Sd6
        • 2.Re3#
      • 1...Sh6
        • 2.Re3#
      • 1...Se7
        • 2.Re3#
      • 1...Sg7
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE,XS(G)::QAB1(I),XS(d)
    • B(f);OGATE::QAB1(I),XS(d)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR1(I),XP(c)
      • Refutation
        • S(a);XS(B)
  • Actual
    • S(G);
    • Vars
      • K(b);S_FLIGHT,XR(C)::QAB(I),XP(c)
      • B(f);OGATE,XP(E)::QAB1(I),XS(d)
      • S(d);N_GUARD,XP(E)::R1(C)
      • P(c);OGATEB,XS(G)::QAB(I)
      • S(d);N_GUARD::R1(C),XS(d)
      • B(f);OGATE::QAB1(I),XS(d)
      • S(a);N_GUARD::S(G),XS(a)
      • S(a);N_GUARD::S(G)
      • S(d);N_GUARD::R1(C)
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