MESON Chess Problem Database

Problem Display
PID: 211102 (2B5/N2p1p1K/2pBb3/b1Pk4/3p2pp/nP1Q4/5N2/3n3q w - - 0 1)

Svitek, Miroslav

The Problemist, 2019

2B5/N2p1p1K/2pBb3/b1Pk4/3p2pp/nP1Q4/5N2/3n3q

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4+
      • 2.Qxe4#
    • 1...Qf1
      • 2.Qe4#
    • 1...Qg1
      • 2.Qe4#
    • 1...Qh2
      • 2.Qe4#
    • 1...Qh3
      • 2.Qe4#
    • 1...Bf5+
      • 2.Qxf5#
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
      • 2.bxc4#
    • 1...Sb5
      • 2.Qc4#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Bxc6#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Bf5+
        • 2.Qxf5#
      • 1...Bxd7!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Qxd4#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Bf5+
        • 2.Qxf5#
      • 1...Sxb5
        • 2.Qc4#
      • 1...cxb5
        • 2.Bb7#
      • 1...Bc3
        • 2.Sc7#
      • 1...Sc2
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(b);CHECK,N_GUARD::QAB1(C),XQ(b)
    • Q(b);N_GUARD::QAB1(C)
    • B(j);CHECK,N_GUARD::QAR2(C),XB(j)
    • S(c);N_GUARD::QAB1(C)
  • Tries
    • Try
      • B(H);XP(k)
      • Threat
        • B(H),XP(i)
      • Vars
        • Q(b);CHECK,N_GUARD::QAB1(C),XQ(b)
        • B(j);CHECK,N_GUARD::QAR2(C),XB(j)
      • Refutation
        • B(j);XB(H)
  • Actual
    • S(F);
    • Threat
      • QAR1(C),XP(d)
    • Vars
      • Q(b);CHECK,N_GUARD::QAB1(C),XQ(b)
      • B(j);CHECK,N_GUARD::QAR2(C),XB(j)
      • S(c);N_GUARD,XS(F)::QAB1(C)
      • P(i);OGATEB,XS(F)::B(H)
      • B(g);N_GUARD::S(F)
      • S(c);N_GUARD::QAB1(C)
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).