Problem Display
PID: 46180 (7b/3b4/3K2N1/pp1Qppp1/3n1RB1/r2k3q/3r4/2RN4 w - - 0 1)

Bartolovic, Hrvoje

The Problemist Supplement, 2002

7b/3b4/3K2N1/pp1Qppp1/3n1RB1/r2k3q/3r4/2RN4

#2

7 + 12


SOLUTION


  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rc3#
    • 1...Ra2
      • 2.Rc3#
    • 1...Rc3
      • 2.Rxc3#
    • 1...Ra4
      • 2.Rc3#
    • 1...b4
      • 2.Qc4#
    • 1...fxg4
      • 2.Qe4#
  • Tries
    • 1.Qb3+?
      • 1...Sxb3
        • 2.Rc3#
      • 1...Rxb3!
  • Keys
    • 1.Qxe5!
      • threat
        • 2.Rxd4#
      • 1...Bxe5+
        • 2.Sxe5#
      • 1...Qxg4
        • 2.Qe3#
      • 1...gxf4
        • 2.Sxf4#
      • 1...Qe3
        • 2.Qxe3#
      • 1...Ra4
        • 2.Rc3#
      • 1...Sc2
        • 2.Sb2#
      • 1...Se2
        • 2.Sf2#
      • 1...Sb3
        • 2.Rc3#
      • 1...Sf3
        • 2.Qe3#
      • 1...Sc6
        • 2.Qxb5#
      • 1...Se6
        • 2.Qxf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 5
  • Sets
    • R(b);N_GUARD::R1(A)
    • R(b);N_GUARD::R1(A),XR(b)
    • P(g);N_GUARD::QAB1(E)
    • P(i);N_GUARD,XB(D)::QAB1(E)
  • Tries
    • Try
      • Q(E);CHECK,N_PINS(e)
      • Vars
        • S(e);XQ(E)::R1(A)
      • Refutation
        • R(b);XQ(E)
  • Actual
    • Q(E);N_PINS(e),XP(h)
    • Threat
      • R1(C),XS(e)
    • Vars
      • B(l);CHECK,XQ(E)::S(G),XB(l)
      • Q(d);N_GUARD,XB(D)::QAR1(E)
      • P(j);XR(C)::S(G),XP(j)
      • Q(d);N_GUARD::QAR1(E),XQ(d)
      • R(b);N_GUARD::R1(A)
      • S(e);S_CUTR(a)::S(B)
      • S(e);S_CUTR(b)::R1(A)
      • S(e);S_CUTQ(d)::QAR1(E)
      • S(e);N_GUARD,S_CUTB(k)::QAB(E),XP(g)
      • S(e);N_GUARD,S_CUTB(k)::QAB(E),XP(i)


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).