MESON Chess Problem Database

Problem Display
PID: 148126 (3B4/KR1p4/2k4r/3n2P1/P4N2/8/1p1P4/1Qr5 w - - 0 1)

Goumondy, Claude

5th HM., Mat, 1977

3B4/KR1p4/2k4r/3n2P1/P4N2/8/1p1P4/1Qr5

#2

8 + 6

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qxd5#
      • 1...Kc5
        • 2.Qxd5#
      • 1...Kd6
        • 2.Qxd5#
      • 1...Sxf4
        • 2.Rc7#
      • 1...Rd6
        • 2.Qb5#
      • 1...Sc3
        • 2.Rc7#
      • 1...Se3
        • 2.Rc7#
      • 1...Sb4
        • 2.Rc7#
      • 1...Sb6
        • 2.Rc7#
      • 1...Sf6
        • 2.Rc7#
      • 1...Sc7
        • 2.Rxc7#
      • 1...Se7
        • 2.Rc7#
      • 1...Rc5!
    • 1.Qf5?
      • threat
        • 2.Qxd5#
      • 1...Kc5
        • 2.Qxd5#
      • 1...Kd6
        • 2.Qxd5#
      • 1...Sxf4
        • 2.Rb6#
      • 1...Rc5
        • 2.Qxd7#
      • 1...Sc3
        • 2.Rb6#
      • 1...Se3
        • 2.Rb6#
      • 1...Sb4
        • 2.Rb6#
      • 1...Sb6
        • 2.Rxb6#
      • 1...Sf6
        • 2.Rb6#
      • 1...Sc7
        • 2.Rb6#
      • 1...Se7
        • 2.Rb6#
      • 1...Rd6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxd5#
      • 1...Kc5
        • 2.Qxd5#
      • 1...Kd6
        • 2.Qxd5#
      • 1...Rc5
        • 2.Rb6#
      • 1...Rd6
        • 2.Rc7#

Anticipated by 103897(1967)

This anticipates 244188(2019)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XS(c)
      • Vars
        • K(d);P-FLIGHT::QAR1(A),XS(c)
        • K(d);P-FLIGHT,P_SPINS(c)::QAR1(A),XS(c)
        • S(c);N_GUARD,XS(D)::R1(G)
        • R(e);SBLOCK::QAB1(A)
        • S(c);N_GUARD::R1(G)
        • S(c);N_GUARD::R1(G),XS(c)
      • Refutation
        • R(a);
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XS(c)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(c)::QAR1(A),XS(c)
        • K(d);P-FLIGHT::QAR1(A),XS(c)
        • S(c);N_GUARD,XS(D)::R1(G)
        • R(a);SBLOCK::QAB1(A),XP(f)
        • S(c);N_GUARD::R1(G)
        • S(c);N_GUARD::R1(G),XS(c)
      • Refutation
        • R(e);
  • Actual
    • Q(A);P_PINS(c)
    • Threat
      • QAB1(A),XS(c)
    • Vars
      • K(d);N_SPINS(c),P-FLIGHT::QAR1(A),XS(c)
      • R(a);SBLOCK::R1(G)
      • R(e);SBLOCK::R1(G)
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).