MESON Chess Problem Database

Problem Display
PID: 99836 (5b2/2Qnk2N/3N2P1/3p4/pK1Pp1Pp/rp4pr/P3R2P/8 w - - 0 1)

Olson, Anders Elis Waldemar

Magyar Sakkelet, 1982

5b2/2Qnk2N/3N2P1/3p4/pK1Pp1Pp/rp4pr/P3R2P/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Rxe3#
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sxg3#
        • 2.Sc5#
        • 2.Seg5#
        • 2.Sd6#
        • 2.Sef6#
      • 1...Ke6+
        • 2.Sc5#
      • 1...Ke8+
        • 2.Sd6#
      • 1...Rxa2
        • 2.Sd2#
      • 1...Rxh2
        • 2.Sf2#
      • 1...bxa2
        • 2.Sc3#
      • 1...gxh2
        • 2.Sg3#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Bh6
        • 2.Seg5#
      • 1...Bg7
        • 2.Sef6#
      • 1...b2
        • 2.Sc3#
      • 1...g2
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATEB::R(B),XP(f)
  • Actual
    • S(G);XP(f)
    • Threat
      • DUALS(8)
    • Vars
      • K(j);CHECK,N_SPINS(i),P-FLIGHT::R(B)+S(G),DCHECK
      • R(a);XP(A)::R(B)+S(G)
      • R(d);XP(C)::R(B)+S(G)
      • P(b);XP(A)::R(B)+S(G)
      • P(c);XP(C)::R(B)+S(G)
      • P(h);OGATE,P_SPINP(h),XS(G)::R(B),XP(h)
      • B(k);::R(B)+S(G)
      • P(b);::R(B)+S(G)
      • P(c);::R(B)+S(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).