Problem Display
PID: 273928 (1nB4B/3p3p/1R4br/R1N1Pkp1/Q5p1/3Kp1n1/8/8 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

1nB4B/3p3p/1R4br/R1N1Pkp1/Q5p1/3Kp1n1/8/8

#2

8 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qe4#
    • 1...Sh1
      • 2.Qe4#
    • 1...Se2
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sh5
      • 2.Qe4#
    • 1...Sa6
      • 2.Bxd7#
    • 1...Sc6
      • 2.Bxd7#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg7#
      • 1...dxe6
        • 2.Bxe6#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sh5
        • 2.Qe4#
      • 1...d5
        • 2.exd5 ep#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(j);N_GUARD::B(G),XP(h)
  • Actual
    • S(D);N_PINP(h)
    • Threat
      • S(D)
    • Vars
      • P(h);OGATE,P_SPINP(h),XS(D)::B(G),XP(h)
      • S(b);N_GUARD::QAB1(B),XS(b)
      • S(b);N_GUARD::QAB1(B)
      • P(h);OGATE::R(C)+P(E),XP(h),EP


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).