MESON Chess Problem Database

Problem Display
PID: 267746 (4B3/p5N1/8/n1pk2p1/1Rp1Np2/2B2P2/1QR4K/5b2 w - - 0 1)

Biscan, Dragutin

Probleemblad, 1985

4B3/p5N1/8/n1pk2p1/1Rp1Np2/2B2P2/1QR4K/5b2

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Rd2#
    • 1...Bh3
      • 2.Rd2#
    • 1...Sc6
      • 2.Bf7#
  • Tries
    • 1.Be5?
      • threat
        • 2.Sf6#
      • 1...cxb4
        • 2.Qd4#
      • 1...c3!
    • 1.Bf6?
      • threat
        • 2.Qe5#
      • 1...Sc6
        • 2.Bf7#
      • 1...c3!
    • 1.Rg2?
      • threat
        • 2.Rxg5#
      • 1...Bxg2
        • 2.Qd2#
      • 1...Sc6
        • 2.Bf7#
      • 1...g4!
    • 1.Rb6?
      • threat
        • 2.Sf6#
        • 2.Bf7#
        • 2.Rd6#
      • 1...Bh3
        • 2.Sf6#
        • 2.Rd2#
        • 2.Rd6#
      • 1...Sc6
        • 2.Bxc6#
        • 2.Bf7#
      • 1...Sb7
        • 2.Sf6#
        • 2.Bc6#
        • 2.Bf7#
      • 1...axb6!
  • Keys
    • 1.Rb8!
      • threat
        • 2.Rd8#
      • 1...Bh3
        • 2.Rd2#
      • 1...Sc6
        • 2.Bf7#
      • 1...Sb7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::R(B)
    • S(d);SBLOCK::B(I)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(G)
      • Vars
        • P(e);N_GUARD,XR(F)::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • S(d);SBLOCK::B(I)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Threat
        • R(B),XP(g)
      • Vars
        • B(a);N_GUARD,XR(B)::QAR(A)
        • S(d);SBLOCK::B(I)
      • Refutation
        • P(g);
    • Try
      • R(F);
      • Threat
        • DUALS(3)
      • Refutation
        • P(h);XR(F)
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • B(a);N_GUARD::R(B)
      • S(d);SBLOCK::B(I)
      • S(d);N_GUARD::QAB(A),XS(d)
HTML5 logo

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).