MESON Chess Problem Database

Problem Display
PID: 243540 (4n3/1RQ4p/2N1p3/pPkP4/2N3pq/3P2p1/B7/1K4bn w - - 0 1)

Burda, Josef

Sachove umeni (Ceskoslovensky sach), 2009

4n3/1RQ4p/2N1p3/pPkP4/2N3pq/3P2p1/B7/1K4bn

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qe5#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sf6
      • 2.Qd6#
    • 1...Sg7
      • 2.Qd6#
    • 1...exd5
      • 2.Qb6#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Sa4#
      • 1...a4
        • 2.Sxa4#
      • 1...Sxc7!
    • 1.Qe7+?
      • 1...Kxd5
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.S4xa5#
        • 2.S4e5#
        • 2.Sb6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Qxe7!
    • 1.d4+?
      • 1...Kxd5
        • 2.Sd2#
        • 2.Sd6#
        • 2.Qe5#
      • 1...Bxd4!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Se4#
      • 1...exd5
        • 2.Sb3#
      • 1...Sf2
        • 2.d4#
      • 1...Sd6
        • 2.Qb6#
      • 1...Sf6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(g);OGATEB,P-FLIGHT,XP(F)::QAR1(I)
    • S(j);N_GUARD::QAB1(I),XS(j)
    • S(j);N_GUARD::QAB1(I)
    • P(h);SBLOCK,XP(F)::QAB1(I)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • P(f);::S(D),XP(f)
      • Refutation
        • S(j);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAB1(I),XS(j)
      • Refutation
        • Q(e);XQ(I)
    • Try
      • P(C);CHECK
      • Refutation
        • B(a);XP(C)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • P(h);SBLOCK,XP(F)::S(D)
      • S(b);S_CUTB(a)::P(C)
      • S(j);SBLOCK::QAB1(I)
      • S(j);N_GUARD,S_CUTQ(e)::QAB(I)
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).