MESON Chess Problem Database

Problem Display
PID: 72697 (3r4/2p3p1/2R1p1K1/4k3/3N4/1P3P2/3Q4/3n4 w - - 0 1)

Foschini, Ettore

3rd Prize, Il Secolo, 1921-1923

3r4/2p3p1/2R1p1K1/4k3/3N4/1P3P2/3Q4/3n4

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qg5#
    • 1...Rd5
      • 2.Rxe6#
  • Tries
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Sxe3!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kxf4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Sc6#
      • 1...Kd5
        • 2.Sc6#
      • 1...Kd6
        • 2.Sc6#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...Rd5
        • 2.Qh2#
      • 1...Rd6
        • 2.Qg5#
      • 1...c6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK,XS(D)::QAR2(A)
    • R(f);SBLOCK::R1(E),XP(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • R(E);
    • Threat
      • S(D)
    • Vars
      • K(b);P-FLIGHT::QAR(A)+S(D)
      • K(b);S_FLIGHT::QAR(A)+S(D)
      • R(f);OGATE,XS(D)::QAB1(A),XR(f)
      • R(f);SBLOCK::QAB(A)
      • R(f);SBLOCK::QAR2(A)
      • P(d);::S(D),XP(d)
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).