MESON Chess Problem Database

Problem Display
PID: 140101 (6K1/4N3/4P2k/4p3/4PnP1/7N/4R3/2B5 w - - 0 1)

Monnier, Charles

L'Echiquier, 1938

6K1/4N3/4P2k/4p3/4PnP1/7N/4R3/2B5

#2

8 + 3

56 The Problemist 1938
5454 Near Snap 2013
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Sfd5#
        • 2.Sh5#
        • 2.Sfg6#
      • 1...exf4
        • 2.Bxf4#
      • 1...Kg5!
  • Keys
    • 1.Rd2!
      • 1...Sxh3
        • 2.Rh2#
      • 1...Sxe6
        • 2.Rd6#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sg2
        • 2.Rxg2#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sh5
        • 2.g5#
      • 1...Sg6
        • 2.Sf5#

Anticipated by 140100(1916), 58111(1928), 139043(1937)

This anticipates 157162(1946), 145956(1951), 227985(1970)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);XS(a)
      • Threat
        • DUALS(6)
      • Vars
        • P(b);OGATE,P_SPINP(b),XS(C)::B(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(B);N_PINS(a)
    • Vars
      • S(a);OGATEB,XS(C)::B(A)+R(B)
      • S(a);OGATEB,XP(F)::B(A)+R(B)
      • S(a);OGATEB::B(A)+R(B),XS(a)
      • S(a);SBLOCK::P(E)
      • S(a);SBLOCK::S(G)
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