MESON Chess Problem Database

Problem Display
PID: 109312 (8/2nN2b1/6b1/7p/1p1k3r/RrNP1P2/PR1Q1Kn1/B4B2 w - - 0 1)

Salardini, Erio

Chess, 1954

8/2nN2b1/6b1/7p/1p1k3r/RrNP1P2/PR1Q1Kn1/B4B2

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3
      • 2.Rxb4#
    • 1...Re4
      • 2.dxe4#
    • 1...Bxd3
      • 2.Qxd3#
    • 1...Be4
      • 2.dxe4#
    • 1...Sd5
      • 2.Se2#
      • 2.Sb5#
  • Tries
    • 1.Qe3+?
      • 1...Kxc3
        • 2.Rd2#
        • 2.Re2#
        • 2.Raxb3#
      • 1...Sxe3!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qc5#
      • 1...Rxb2+
        • 2.Se2#
      • 1...Kxc3
        • 2.Rd2#
      • 1...Rxc3
        • 2.Rxb4#
      • 1...Bf5
        • 2.Qxg7#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qf6#
        • 2.Qe5#
      • 1...Sd5
        • 2.Sb5#
      • 1...Sa6
        • 2.Sb5#
      • 1...Se6
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(b);OGATE,XR(G)::R(D),XP(c)
    • R(e);OGATE::QAR(E)+P(I),XR(e)
    • B(g);OGATE,P_SPINB(g),XP(I)::QAR1(E),XB(g)
    • B(g);OGATE::QAR(E)+P(I),XB(g)
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • S(a);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • R(b);CHECK,XR(D)::S(H)
      • K(d);OGATEB,P_SPINR(b),S_FLIGHT,XS(H)::B(A)+R(D)
      • R(b);OGATE,XS(H)::R(D),XP(c)
      • B(g);OGATE::QAB(E),XB(i)
      • B(i);N_GUARD::QAB1(E),XB(i)
      • S(h);N_GUARD::S(H)
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).