MESON Chess Problem Database

Problem Display
PID: 229440 (b4n2/b1B2B2/2pQ1p2/5kp1/3p4/3P1N1P/4P1n1/6K1 w - - 0 1)

Groeneveld, Cornelis

Sachova skladba, 2005

b4n2/b1B2B2/2pQ1p2/5kp1/3p4/3P1N1P/4P1n1/6K1

#2

8 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bb8
      • 2.Sxd4#
      • 2.Qc5#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sg6
      • 2.Be6#
      • 2.Qe6#
      • 2.Qd7#
    • 1...Sd7
      • 2.Qe6#
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qe6#
      • 2.Qd7#
  • Tries
    • 1.Bg6+?
      • 1...Sxg6
        • 2.Qd7#
      • 1...Kxg6!
    • 1.Qg3?
      • threat
        • 2.Qg4#
      • 1...g4
        • 2.Qxg4#
        • 2.hxg4#
      • 1...Se3!
    • 1.Qe7?
      • threat
        • 2.Qe4#
      • 1...Se6
        • 2.Qxe6#
      • 1...c5!
    • 1.Qd7+?
      • 1...Se6
        • 2.Qxe6#
      • 1...Sxd7!
  • Keys
    • 1.Qxd4!
      • threat
        • 2.e4#
      • 1...Bxd4+
        • 2.Sxd4#
      • 1...Se3
        • 2.Qe4#
      • 1...c5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::QAR(F),XB(g)
    • S(i);N_GUARD::QAB1(F),XS(i)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • S(i);SBLOCK,XB(H)::QAB(F)
      • Refutation
        • K(c);P_SPINP(f),S_FLIGHT,XB(H)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Refutation
        • S(a);
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • S(i);N_GUARD::QAB1(F),XS(i)
      • Refutation
        • P(e);
    • Try
      • Q(F);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::QAB1(F),XS(i)
      • Refutation
        • S(i);XQ(F)
  • Actual
    • Q(F);P_SPINQ(F),XP(b)
    • Threat
      • P(B)
    • Vars
      • B(g);CHECK,XQ(F)::S(D),XB(g)
      • S(a);N_PINQ(F)::QAB1(F)
      • P(e);N_PINQ(F)::QAB1(F)
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).