MESON Chess Problem Database

Problem Display
PID: 61368 (8/4B1p1/4B1P1/RK2k3/1N2bN2/7R/8/8 w - - 0 1)

Duchateau, O

Het Belgisch Schaakbord (L'Echiquier Belge), 1955

8/4B1p1/4B1P1/RK2k3/1N2bN2/7R/8/8

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Ka4+?
      • 1...Kd4
        • 2.Se2#
      • 1...Kxf4
        • 2.Bg5#
        • 2.Bd6#
      • 1...Bd5!
    • 1.Kc4+?
      • 1...Kxf4
        • 2.Bg5#
        • 2.Bd6#
      • 1...Bd5+!
    • 1.Ka6+?
      • 1...Kd4
        • 2.Se2#
      • 1...Kxf4
        • 2.Bg5#
        • 2.Bd6#
      • 1...Bd5!
    • 1.Kb6+?
      • 1...Kd4
        • 2.Se2#
      • 1...Kxf4
        • 2.Bg5#
        • 2.Bd6#
      • 1...Bd5!
    • 1.Sbd3+?
      • 1...Kd4
        • 2.Se2#
      • 1...Bxd3+!
  • Keys
    • 1.Ra4!
      • 1...Bd3+
        • 2.Sbxd3#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Kd4
        • 2.Sc6#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Bxg6
        • 2.Sc6#
      • 1...Bb1
        • 2.Sc6#
      • 1...Bh1
        • 2.Sbd3#
      • 1...Bc2
        • 2.Sc6#
      • 1...Bg2
        • 2.Sbd3#
      • 1...Bf3
        • 2.Sbd3#
      • 1...Bd5
        • 2.Sbd3#
      • 1...Bf5
        • 2.Sc6#
      • 1...Bb7
        • 2.Sbd3#
      • 1...Ba8
        • 2.Sbd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);CHECK,S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • K(E);CHECK,S_FLIGHT
      • Refutation
        • B(a);CHECK,P_SPINB(a)
    • Try
      • K(E);CHECK,S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • K(E);CHECK,P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • S(B);CHECK
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • B(a);CHECK,XS(B)
  • Actual
    • R(D);
    • Vars
      • B(a);CHECK,N_GUARD::S(B),XB(a)
      • K(b);S_FLIGHT::R(D)+S(B),DCHECK
      • K(b);S_FLIGHT,XS(C)::S(B)
      • B(a);N_GUARD,XP(G)::S(B)
      • B(a);N_GUARD::S(B)
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