MESON Chess Problem Database

Problem Display
PID: 175450 (5q2/4Pr2/3N3p/1p1R2pP/1K3knB/3R1Bp1/2pp4/3bb1Nr w - - 0 1)

van Dijk, Johannes

Schaakmat, 1899

5q2/4Pr2/3N3p/1p1R2pP/1K3knB/3R1Bp1/2pp4/3bb1Nr

#2

9 + 13

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Sxh3#
    • 1...Be2
      • 2.Sxe2#
    • 1...Bxf3
      • 2.Rxf3#
    • 1...Sh2
      • 2.Sh3#
    • 1...Se3
      • 2.R3d4#
    • 1...Se5
      • 2.R5d4#
    • 1...Sf6
      • 2.Rf5#
  • Keys
    • 1.Be2!
      • threat
        • 2.Rf3#
      • 1...Bxe2
        • 2.Sxe2#
      • 1...Sf2
        • 2.Bxg3#
      • 1...Sh2
        • 2.Sh3#
      • 1...Se3
        • 2.R3d4#
      • 1...Se5
        • 2.R5d4#
      • 1...Sf6
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::S(A),XR(c)
    • B(a);N_GUARD::S(A),XB(a)
    • B(a);OGATE,XB(C)::R1(B),XB(a)
    • S(h);S_CUTR(c)::S(A)
    • S(h);SBLOCK::R(B)
    • S(h);SBLOCK::R(F)
    • S(h);S_CUTR(l)::R1(F)
  • Actual
    • B(C);
    • Threat
      • R1(B)
    • Vars
      • B(a);XB(C)::S(A),XB(a)
      • S(h);S_CUTB(b)::B(E),XP(f)
      • S(h);S_CUTR(c)::S(A)
      • S(h);SBLOCK::R(B)
      • S(h);SBLOCK::R(F)
      • S(h);S_CUTR(l)::R1(F)
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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).