Problem Display
PID: 240305 (8/3N4/1P6/2BP4/2kpB2R/2NrP1Q1/K1R5/8 w - - 0 1)

Maleika, Gerhard

Problem-Forum, 2004

8/3N4/1P6/2BP4/2kpB2R/2NrP1Q1/K1R5/8

#2

11 + 3


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Sb1+?
      • 1...Rc3
        • 2.Sa3#
      • 1...Kb5!
    • 1.Sb5+?
      • 1...Rc3
        • 2.Sa3#
        • 2.Sd6#
      • 1...Kxb5!
  • Keys
    • 1.exd4!
      • threat
        • 2.Se5#
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Rxc3
        • 2.Qd3#
      • 1...Rxg3
        • 2.Se5#
      • 1...Rxd4
        • 2.Bd3#
      • 1...Rd1
        • 2.Se5#
      • 1...Rd2
        • 2.Se5#
      • 1...Re3
        • 2.Se5#
      • 1...Rf3
        • 2.Se5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • R(a);P_SPINR(a)::S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XS(C)
  • Actual
    • P(D);XP(c)
    • Threat
      • DUALS(3)
    • Vars
      • R(a);P_SPINR(a),XS(C)::QAB1(E)
      • R(a);XQ(E)::S(K)
      • R(a);XP(D)::B(F)
      • R(a);::S(K)
      • R(a);P_PINR(B)::S(K)


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).