MESON Chess Problem Database

Problem Display
PID: 254869 (3n4/1pB1p3/1K2p2r/RNNk4/Bp2p3/bPp5/4PQ2/6q1 w - - 0 1)

Binder, Friedrich

Wiener Schachzeitung, 1937

3n4/1pB1p3/1K2p2r/RNNk4/Bp2p3/bPp5/4PQ2/6q1

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qd4#
    • 1...Qa1
      • 2.Qd4#
    • 1...Qb1
      • 2.Qd4#
    • 1...Qc1
      • 2.Qd4#
    • 1...Qe1
      • 2.Qd4#
    • 1...Qf1
      • 2.Qd4#
    • 1...Qh1
      • 2.Qd4#
    • 1...Qg2
      • 2.Qd4#
    • 1...Qg3
      • 2.Qd4#
    • 1...Qg4
      • 2.Qd4#
    • 1...Qg5
      • 2.Qd4#
    • 1...Qg6
      • 2.Qd4#
    • 1...Qg8
      • 2.Qd4#
    • 1...e3
      • 2.Qf3#
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sd4#
      • 1...Rxe6+
        • 2.Sd6#
      • 1...Kxe6
        • 2.Sd4#
      • 1...Sxe6
        • 2.Sxc3#
      • 1...e3
        • 2.Qf5#
      • 1...Sc6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 13
  • Sets
    • Q(a);N_GUARD::QAR1(B)
    • P(e);OGATEB::QAB(B)
  • Actual
    • S(G);P_SPINQ(B),P_SPINS(G),XP(g)
    • Threat
      • R(E)+S(F)
    • Vars
      • R(h);CHECK,SBLOCK,XS(G)::R(E)+S(F)
      • K(f);S_FLIGHT,XS(G)::S(F)
      • S(k);SBLOCK,XS(G)::R(E)+S(F),DCHECK,XP(c)
      • P(e);N_PINQ(B)::QAR2(B)
      • S(k);N_PINS(G)::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).