MESON Chess Problem Database

Problem Display
PID: 244702 (b3R3/p7/1Q2N3/4PPK1/2B1kP2/1pq1p3/2n1P2N/B7 w - - 0 1)

Colaneri, Bruno

Coello-75 JT (Problemas), 2017

b3R3/p7/1Q2N3/4PPK1/2B1kP2/1pq1p3/2n1P2N/B7

#2

11 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sc5#
    • 1...Qd2
      • 2.Sc5#
    • 1...Qxe5
      • 2.Sc5#
    • 1...Qd3
      • 2.Sc5#
      • 2.exd3#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sd4
      • 2.Sc5#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Sg3#
      • 1...Qe1
        • 2.Sc5#
      • 1...Qxc4!
    • 1.Bd3+?
      • 1...Kd5
        • 2.Rd8#
        • 2.Qd6#
      • 1...Qxd3!
    • 1.Qd4+?
      • 1...Sxd4
        • 2.Sc5#
      • 1...Qxd4!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf6#
      • 1...Qxe5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(c);::S(J)
    • Q(c);P_PINP(G),XP(F)::S(J)
    • B(g);N_GUARD::QAB(I),XB(g)
    • S(a);SBLOCK::S(J)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • Q(c);::S(J)
      • Refutation
        • Q(c);XB(D)
    • Try
      • B(D);CHECK
      • Refutation
        • Q(c);XB(D)
    • Try
      • Q(I);CHECK
      • Vars
        • S(a);SBLOCK,XQ(I)::S(J)
      • Refutation
        • Q(c);XQ(I)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • Q(c);P_PINP(G),XP(F)::S(J)
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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).