Problem Display
PID: 137924 (1nB2N2/3q2R1/2p5/Rr1p1k1p/r1P2pN1/2PK2pP/3B4/1Q6 w - - 0 1)

Mladenovic, Slobodan

6th Place, Liga Problemista, 1987/2

1nB2N2/3q2R1/2p5/Rr1p1k1p/r1P2pN1/2PK2pP/3B4/1Q6

#2

11 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Qe6
      • 2.Bxe6#
    • 1...Rxa5
      • 2.Ke2#
      • 2.Kd4#
    • 1...Rc5
      • 2.Ke2#
      • 2.Kd4#
    • 1...Sa6
      • 2.Bxd7#
    • 1...f3
      • 2.Rg5#
      • 2.Rf7#
    • 1...dxc4+
      • 2.Ke2#
  • Tries
    • 1.h4?
      • threat
        • 2.Rg5#
      • 1...dxc4+
        • 2.Ke2#
      • 1...hxg4!
  • Keys
    • 1.Bxf4!
      • threat
        • 2.Rf7#
      • 1...dxc4+
        • 2.Ke3#
      • 1...Kxf4
        • 2.Qf1#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(i);OGATE::B(J),XQ(i)
    • S(j);N_GUARD::B(J),XQ(i)
    • P(e);CHECK,P_SPINR(d),XP(F)::QAB(A)+K(D)
  • Tries
    • Try
      • P(E);
      • Threat
        • R1(I)
      • Vars
        • P(e);CHECK,P_SPINR(d),XP(F)::QAB(A)+K(D)
      • Refutation
        • P(g);XS(G)
  • Actual
    • B(B);XP(c)
    • Threat
      • R(I)
    • Vars
      • P(e);CHECK,P_SPINR(d),XP(F)::QAB(A)+K(D)
      • K(f);N_SPINQ(i),OGATEB,P-FLIGHT,XB(B)::QAR(A)


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).