Problem Display
PID: 38482 (b3rb1B/4n2K/r3pPp1/2p2kNp/qn6/3p2QP/B3P3/8 w - - 0 1)

Croes, Govert Aliander

1st Prize, Problemisten, 1947

b3rb1B/4n2K/r3pPp1/2p2kNp/qn6/3p2QP/B3P3/8

#2

8 + 13


3105 FIDE Album (1945-1955) 1964
102 Probleemblad 2005

SOLUTION


  • SOUND
  • Sets
    • 1...Ra5
      • 2.Bxe6#
    • 1...Rc6
      • 2.e4#
    • 1...Ra7
      • 2.Bxe6#
    • 1...Bc6
      • 2.Bxe6#
    • 1...Sbc6
      • 2.Bxe6#
    • 1...Sd5
      • 2.e4#
    • 1...Sec6
      • 2.e4#
  • Tries
    • 1.Qg4+?
      • 1...Ke5
        • 2.Sf7#
      • 1...hxg4!
    • 1.f7?
      • threat
        • 2.Qe5#
      • 1...Sbc6
        • 2.Bxe6#
      • 1...Sec6
        • 2.e4#
      • 1...e5
        • 2.Qxe5#
      • 1...Bg7!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Sbc6
        • 2.Sd6#
      • 1...Sec6
        • 2.Qf3#
      • 1...e5
        • 2.Qxe5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD::B(A),XP(h)
    • R(g);S_CUTB(k)::P(B)
    • B(k);S_CUTR(g)::B(A),XP(h)
    • S(c);S_CUTR(g)::B(A),XP(h)
    • S(j);S_CUTB(k)::P(B)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);P-FLIGHT::S(E)
      • Refutation
        • P(f);XQ(C)
    • Try
      • P(F);
      • Threat
        • QAR1(C)
      • Vars
        • S(c);S_CUTR(g)::B(A),XP(h)
        • S(j);S_CUTB(k)::P(B)
        • P(h);::QAR1(C),XP(h)
      • Refutation
        • B(m);
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • K(e);S_FLIGHT::QAR1(C)
      • S(c);S_CUTR(g)::S(E)
      • S(j);S_CUTB(k)::QAR2(C)
      • P(h);::QAR1(C),XP(h)


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).