MESON Chess Problem Database

Problem Display
PID: 267367 (r7/3b4/1R4B1/3k3K/1Pp2Pp1/1p1pPp2/4P3/3Q4 w - - 0 1)

Devos, Germain

Schakend Nederland, 1979

r7/3b4/1R4B1/3k3K/1Pp2Pp1/1p1pPp2/4P3/3Q4

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qxd2#
    • 1...fxe2
      • 2.Qh1#
    • 1...f2
      • 2.Qh1#
    • 1...c3
      • 2.Qxb3#
      • 2.Qxd3#
  • Keys
    • 1.Bxd3!
      • threat
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bh7#
      • 1...Rh8+
        • 2.Bh7#
      • 1...Be8+
        • 2.Bg6#
      • 1...fxe2
        • 2.Qh1#
      • 1...cxd3
        • 2.Qxd3#
      • 1...Bc6
        • 2.Bf5#
      • 1...Ra1
        • 2.Bb1#
      • 1...Ra2
        • 2.Bc2#
      • 1...Bf5
        • 2.Bxf5#
      • 1...c3
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • P(b);OGATEB::QAR(A),XP(b)
    • P(c);OGATEB,XP(B)::QAB(A)
    • P(c);OGATEB::QAB(A)
  • Actual
    • B(H);XP(b)
    • Threat
      • DUALS(5)
    • Vars
      • R(h);CHECK::QAR(A)+B(H)
      • B(g);CHECK::QAR(A)+B(H)
      • P(c);OGATEB,XP(B)::QAB(A)
      • P(d);OGATE,P_SPINP(d),XB(H)::QAR2(A),XP(d)
      • B(g);::QAR(A)+B(H)
      • R(h);::QAR(A)+B(H)
      • B(g);::QAR(A)+B(H),XB(g)
      • P(d);OGATEB::QAB(A),XP(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).