MESON Chess Problem Database

Problem Display
PID: 205532 (8/8/5K2/5N1k/6p1/8/4n2N/3B4 w - - 0 1)

de Savignac Castelet, G Arnaud

L'Echiquier Marseillais, 1925

8/8/5K2/5N1k/6p1/8/4n2N/3B4

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Bxg4#
    • 1...Sg1
      • 2.Bxg4#
    • 1...Sc3
      • 2.Bxg4#
    • 1...Sg3
      • 2.Bxg4#
    • 1...Sd4
      • 2.Bxg4#
    • 1...Sf4
      • 2.Bxg4#
    • 1...g3
      • 2.Bxe2#
  • Keys
    • 1.Sf1!
      • 1...g3
        • 2.Bxe2#
      • 1...Sc1
        • 2.S1g3#
      • 1...Sg1
        • 2.S1g3#
      • 1...Sc3
        • 2.S1g3#
      • 1...Sg3
        • 2.S1xg3#
      • 1...Sd4
        • 2.S1g3#
      • 1...Sf4
        • 2.S1g3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 6
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,P_SPINP(b)::B(A),XP(b)
    • P(b);OGATEB,P_SPINS(a)::B(A),XS(a)
  • Actual
    • S(B);
    • Vars
      • P(b);OGATEB,P_SPINS(a)::B(A),XS(a)
      • S(a);N_GUARD,P_SPINP(b)::S(B)
      • S(a);N_GUARD,P_SPINP(b)::S(B),XS(a)
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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).