MESON Chess Problem Database

Problem Display
PID: 201550 (1n3N2/B1p3R1/P1k4p/1N2bBn1/2PR1p1q/2K2Pp1/6P1/8 w - - 0 1)

Vasseur, A

L'Alfiere di Re, 1922

1n3N2/B1p3R1/P1k4p/1N2bBn1/2PR1p1q/2K2Pp1/6P1/8

#2

11 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Rxc7#
    • 1...Sxf3
      • 2.Be4#
    • 1...Sh3
      • 2.Be4#
    • 1...Se4+
      • 2.Bxe4#
    • 1...Se6
      • 2.Be4#
    • 1...Sf7
      • 2.Be4#
    • 1...Sh7
      • 2.Be4#
    • 1...Sd7
      • 2.Bxd7#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sd8#
      • 1...Bxd4+
        • 2.Sexd4#
      • 1...Se4+
        • 2.Bxe4#
      • 1...Sxf3
        • 2.Be4#
      • 1...Sxe6
        • 2.Be4#
      • 1...Bf6
        • 2.Rxc7#
      • 1...Sh3
        • 2.Be4#
      • 1...Sf7
        • 2.Be4#
      • 1...Sh7
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(d);N_GUARD::R1(J),XP(h)
    • S(e);N_GUARD,XP(C)::B(G)
    • S(e);N_GUARD::B(G)
    • S(e);CHECK,N_GUARD::B(G),XS(e)
    • S(i);N_GUARD::B(G),XS(i)
  • Actual
    • S(K);
    • Threat
      • S(K)
    • Vars
      • B(d);CHECK,XR(E)::S(K),XB(d)
      • S(e);CHECK,N_GUARD::B(G),XS(e)
      • S(e);N_GUARD,XP(C)::B(G)
      • S(e);N_GUARD,XS(K)::B(G)
      • B(d);N_GUARD::R1(J),XP(h)
      • S(e);N_GUARD::B(G)
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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).