MESON Chess Problem Database

Problem Display
PID: 203284 (4Q3/8/1P2p3/2P1p3/Nrk1K3/Bp6/1P6/4n3 w - - 0 1)

Roese, Willibald Erich Hermann Hugo

Deutsche Schachblatter, 1924

4Q3/8/1P2p3/2P1p3/Nrk1K3/Bp6/1P6/4n3

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa4
      • 2.Qxa4#
    • 1...Rb5
      • 2.Qxe6#
    • 1...Rxb6
      • 2.Sxb6#
  • Keys
    • 1.Qd7!
      • 1...Rxa4
        • 2.Qxa4#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Sc2
        • 2.Qd3#
      • 1...Rb5
        • 2.Qxe6#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,XS(C)::QAR2(G),XR(c)
    • R(c);SBLOCK::QAB(G),XP(f)
    • R(c);XP(F)::S(C),XR(c)
  • Actual
    • Q(G);
    • Vars
      • R(c);OGATE,XS(C)::QAR2(G),XR(c)
      • R(c);XP(F)::S(C),XR(c)
      • S(a);N_GUARD::QAB1(G)
      • R(c);SBLOCK::QAB(G),XP(f)
      • S(a);N_GUARD::QAB1(G),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).