Problem Display
PID: 143537 (BR1r4/3p1N2/r1b2n1q/Ppk1B3/Pp1p1n2/1P1p4/K4NRb/7Q w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2011

BR1r4/3p1N2/r1b2n1q/Ppk1B3/Pp1p1n2/1P1p4/K4NRb/7Q

#2

11 + 13


SOLUTION


  • SOUND
  • Sets
    • 1...Bxg2
      • 2.Rxb5#
      • 2.Qc1#
    • 1...Bf3
      • 2.Rxb5#
      • 2.Qc1#
    • 1...Be4
      • 2.Rxb5#
      • 2.Qc1#
    • 1...Bd5
      • 2.Rxb5#
    • 1...S4d5
      • 2.Sxd3#
    • 1...S6d5
      • 2.Se4#
    • 1...d5
      • 2.Qc1#
  • Tries
    • 1.Sxd3+?
      • 1...Sxd3
        • 2.Rc2#
      • 1...Kd5!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Bd6#
      • 1...Bd5
        • 2.Rxb5#
      • 1...S4d5
        • 2.Sxd3#
      • 1...S6d5
        • 2.Se4#
      • 1...d5
        • 2.Qc1#
      • 1...d6
        • 2.Bxd6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD,P_PINP(E)::R1(K),XP(f)
    • S(e);N_GUARD,SBLOCK::S(C),XP(b)
    • S(j);N_GUARD,SBLOCK,S_CUTB(i)::S(C)
    • P(l);SBLOCK::QAR(A)
  • Tries
    • Try
      • S(C);CHECK,XP(b)
      • Vars
        • S(e);XS(C)::R(D)
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(i)
  • Actual
    • R(D);
    • Threat
      • R(D)+B(H),DCHECK
    • Vars
      • B(i);N_GUARD,P_PINP(E)::R1(K),XP(f)
      • S(e);N_GUARD::S(C),XP(b)
      • S(j);N_GUARD,SBLOCK,S_CUTB(i)::S(C)
      • P(l);SBLOCK::QAR(A)
      • P(l);::R(D)+B(H),DCHECK,XP(l)


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).