MESON Chess Problem Database

Problem Display
PID: 203389 (7Q/1Kp5/2R4p/3k3r/3pb3/4Rn2/2P1rn2/7B w - - 0 1)

Filaretov, Sergei P

2nd HM., Shakhmaty, 1924

7Q/1Kp5/2R4p/3k3r/3pb3/4Rn2/2P1rn2/7B

#2

6 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qd8#
    • 1...Bxc2
      • 2.Qd8#
      • 2.Qg8#
    • 1...Bd3
      • 2.Qd8#
      • 2.Qg8#
    • 1...Bf5
      • 2.Qe5#
    • 1...Bg6
      • 2.Qd8#
    • 1...Bh7
      • 2.Qd8#
    • 1...dxe3
      • 2.c4#
    • 1...d3
      • 2.c4#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qe6#
      • 1...dxe3
        • 2.c4#
      • 1...Re5
        • 2.Qd8#
      • 1...Bf5
        • 2.Qe5#
      • 1...Sg5
        • 2.Qf5#
      • 1...d3
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(g);SBLOCK::QAR(F)
    • B(e);P_SPINS(c),S_CUTR(g)::QAR1(F)
    • B(e);P_SPINS(c)::QAR(F)
    • P(d);N_GUARD,XR(C)::P(B)
    • P(d);N_GUARD::P(B)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • P(d);N_GUARD,XR(C)::P(B)
      • R(g);SBLOCK::QAR(F)
      • B(e);P_SPINS(c),S_CUTR(g)::QAR1(F)
      • S(c);N_GUARD,P_SPINB(e),S_CUTR(g)::QAR2(F)
      • P(d);N_GUARD::P(B)
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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).