MESON Chess Problem Database

Problem Display
PID: 206117 (1Br5/5P2/2k1b3/Pp1R4/3K4/Q7/8/8 w - - 0 1)

Gatti, Daniele

Tehtavaniekka, 2019

1Br5/5P2/2k1b3/Pp1R4/3K4/Q7/8/8

#2

6 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7?
      • threat
        • 2.Rc5#
        • 2.Rd6#
      • 1...Rc7
        • 2.Qxc7#
      • 1...Bd7
        • 2.Qxd7#
      • 1...Rd8
        • 2.Qc7#
      • 1...b4
        • 2.Rc5#
      • 1...Bxd5!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qd6#
      • 1...Kxd7
        • 2.Qd6#
      • 1...Bxd7
        • 2.Qf3#
      • 1...Rc7
        • 2.Rxc7#
      • 1...b4
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);N_GUARD::QAR1(A),XR(d)
        • B(c);N_GUARD::QAB1(A),XB(c)
        • R(d);N_GUARD,P_PINR(D)::QAR1(A)
        • P(a);::R1(D)
      • Refutation
        • B(c);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);S_FLIGHT,XR(D)::QAR1(A)
      • B(c);N_GUARD,SBLOCK,XR(D)::QAB(A)
      • R(d);N_GUARD::R1(D),XR(d)
      • P(a);OGATEB::QAB(A)
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).