MESON Chess Problem Database

Problem Display
PID: 21344 (3R4/q1pNpr1b/R1P1pb2/1p1kP1p1/3nN3/2BP4/p5K1/7B w - - 0 1)

Bottacchi, Antonio

Good Companions (March), 1918

3R4/q1pNpr1b/R1P1pb2/1p1kP1p1/3nN3/2BP4/p5K1/7B

#2

10 + 12

3132 The Good Companion Two-Mover 1922
4901 Best Problems 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Sdf6#
    • 1...Sc2
      • 2.Sdc5#
      • 2.Sdxf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Se2
      • 2.Sdc5#
      • 2.Sdxf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Sb3
      • 2.Sdc5#
      • 2.Sdxf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Sf3
      • 2.Sdc5#
      • 2.Sdxf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Sf5
      • 2.Sdxf6#
    • 1...Sxc6
      • 2.Sb6#
      • 2.Sdxf6#
  • Keys
    • 1.Kf2!
      • threat
        • 2.Sexf6#
      • 1...Bxe5+
        • 2.Sdf6#
      • 1...Bg7+
        • 2.Sef6#
      • 1...Bh8+
        • 2.Sef6#
      • 1...Sc2+
        • 2.Sdc5#
      • 1...Se2+
        • 2.Sdc5#
      • 1...Sb3+
        • 2.Sdc5#
      • 1...Sf3+
        • 2.Sdc5#
      • 1...Sf5+
        • 2.Sec5#
      • 1...Sxc6+
        • 2.Sb6#
      • 1...Bxe4
        • 2.Bxe4#

There are these versions: 109961

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(g);SBLOCK,XP(F)::R(J)+S(I),DCHECK
    • S(b);::R(J)+S(I),DCHECK,XB(g)
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • B(A)+S(E),DCHECK,XB(g)
    • Vars
      • B(g);CHECK,SBLOCK,XP(F)::R(J)+S(I),DCHECK
      • B(g);CHECK::B(A)+S(E),DCHECK
      • S(b);CHECK::R(J)+S(I)
      • S(b);CHECK,N_GUARD,S_CUTB(l)::B(A)+S(E)
      • S(b);CHECK,SBLOCK,XP(H)::R(J)+S(I),DCHECK
      • B(l);OGATE,P_SPINB(l),XS(E)::B(A),XB(l)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).