MESON Chess Problem Database

Problem Display
PID: 69831 (1B1N4/7P/r2p1p2/rQp2Pb1/3k2K1/2p4R/bnPN1PB1/8 w - - 0 1)

Navon, Emanuel

2nd HM., Mezija, 2000

1B1N4/7P/r2p1p2/rQp2Pb1/3k2K1/2p4R/bnPN1PB1/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sxc6#
    • 1...Ra7
      • 2.Sc6#
    • 1...Ra8
      • 2.Sc6#
    • 1...c4
      • 2.Se6#
  • Tries
    • 1.Sb3+?
      • 1...Ke5
        • 2.Sf7#
        • 2.Qe8#
      • 1...Bxb3!
    • 1.Qe2?
      • threat
        • 2.Qe4#
      • 1...Be3
        • 2.Qxe3#
      • 1...c4
        • 2.Se6#
      • 1...d5
        • 2.Sf3#
      • 1...Bd5!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Sf3#
        • 2.Qe4#
        • 2.Qxc3#
      • 1...Sxd3!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Sf3#
        • 2.Qe4#
      • 1...Rxc6
        • 2.Sxc6#
      • 1...Bd5
        • 2.Qxd5#
      • 1...c4
        • 2.Sf3#
      • 1...d5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD::S(K),XR(h)
    • R(h);N_GUARD::S(K)
    • P(f);S_CUTB(a)::S(K)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • B(g);N_GUARD::QAB1(G),XB(g)
        • P(f);S_CUTB(a)::S(K)
        • P(i);SBLOCK::S(B)
      • Refutation
        • B(a);
    • Try
      • Q(G);CHECK
      • Refutation
        • S(b);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • R(h);XQ(G)::S(K),XR(h)
      • B(a);N_GUARD::QAR1(G),XB(a)
      • P(f);::S(B)
      • P(i);S_CUTB(a)::S(K)
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).