MESON Chess Problem Database

Problem Display
PID: 218525 (4R3/3N1N2/2r1p1r1/1Qnp1pnB/4k3/4P3/4p3/4K3 w - - 0 1)

Robertson, George T

Cincinnati Commercial, 1881

4R3/3N1N2/2r1p1r1/1Qnp1pnB/4k3/4P3/4p3/4K3

#2

7 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rxe5#
  • Keys
    • 1.Kxe2!
      • 1...Sxd7
        • 2.Qd3#
      • 1...Sxf7
        • 2.Bf3#
      • 1...d4
        • 2.Qxc6#
      • 1...f4
        • 2.Bxg6#
      • 1...Ra6
        • 2.Sxc5#
      • 1...Rb6
        • 2.Sxc5#
      • 1...Rd6
        • 2.Sxc5#
        • 2.Sxd6#
      • 1...Rc7
        • 2.Sd6#
      • 1...Rc8
        • 2.Sd6#
      • 1...Rf6
        • 2.Sxf6#
        • 2.Sxg5#
      • 1...Rh6
        • 2.Sxg5#
      • 1...Rg7
        • 2.Sf6#
      • 1...Rg8
        • 2.Sf6#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sa4
        • 2.Qd3#
      • 1...Sa6
        • 2.Qd3#
      • 1...Sb7
        • 2.Qd3#
      • 1...Sf3
        • 2.Bxf3#
      • 1...Sh3
        • 2.Bf3#
      • 1...Sh7
        • 2.Bf3#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • P(h);OGATE::R1(G),XP(h)
  • Actual
    • K(A);P-FLIGHT,XP(a)
    • Vars
      • S(c);N_GUARD,XS(E)::QAB1(C)
      • S(f);N_GUARD,XS(F)::B(D)
      • P(d);OGATEB::QAB(C),XR(g)
      • P(e);OGATEB::B(D),XR(i)
      • R(g);N_GUARD::S(E),XS(c)
      • R(g);N_GUARD::S(F)
      • R(i);N_GUARD::S(F),XS(f)
      • R(i);N_GUARD::S(E)
      • S(c);N_GUARD::QAB1(C)
      • S(c);N_GUARD::QAB1(C),XS(c)
      • S(f);N_GUARD::B(D),XS(f)
      • S(f);N_GUARD::B(D)
      • P(h);OGATE::R1(G),XP(h)
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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).