MESON Chess Problem Database

Problem Display
PID: 181764 (1q6/5p1B/8/Q7/2Np1p2/8/N1P2K2/rk6 w - - 0 1)

Volf, Josef

Dom i Svet, 1905

1q6/5p1B/8/Q7/2Np1p2/8/N1P2K2/rk6

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Sd2#
    • 1...Rxa2
      • 2.Qe1#
  • Tries
    • 1.c3+?
      • 1...d3
        • 2.Bxd3#
      • 1...f5!
  • Keys
    • 1.Bd3!
      • threat
        • 2.c3#
      • 1...Rxa2
        • 2.Qe1#
      • 1...Qb2
        • 2.Sd2#
      • 1...Qb3
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(f);P_PINP(B),SBLOCK::S(D)
    • R(a);P_PINP(B),SBLOCK,XS(A)::QAR(E)
  • Tries
    • Try
      • P(B);CHECK
      • Vars
        • P(c);P_SPINP(c)::B(F),XP(c)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • B(F);
    • Threat
      • B(F)+P(B)
    • Vars
      • R(a);P_PINP(B),SBLOCK,XS(A)::QAR(E)
      • Q(f);P_PINP(B),SBLOCK::S(D)
      • Q(f);OGATE::B(F)+P(B),XQ(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).