MESON Chess Problem Database

Problem Display
PID: 19125 (3R2B1/4p1K1/1n4p1/1N2k3/2r1p3/2P2R2/1Q4b1/4N3 w - - 0 1)

Bell, Fred

Southern Daily Post, 1912

3R2B1/4p1K1/1n4p1/1N2k3/2r1p3/2P2R2/1Q4b1/4N3

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qxc3#
    • 1...Ra4
      • 2.c4#
    • 1...Rb4
      • 2.cxb4#
    • 1...Rd4
      • 2.cxd4#
    • 1...Rc5
      • 2.c4#
    • 1...Rc6
      • 2.c4#
    • 1...Rc7
      • 2.c4#
    • 1...Rc8
      • 2.c4#
    • 1...Bf1
      • 2.Qh2#
    • 1...Bh1
      • 2.Qh2#
    • 1...Bh3
      • 2.Qh2#
    • 1...Sa4
      • 2.Rd5#
    • 1...Sd5
      • 2.Rxd5#
    • 1...Sa8
      • 2.Rd5#
    • 1...Sc8
      • 2.Rd5#
  • Keys
    • 1.Sd6!
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Bxf3
        • 2.Qh2#
      • 1...exf3
        • 2.Sd3#
      • 1...exd6
        • 2.Re8#
      • 1...Sd7
        • 2.Sxc4#
      • 1...e6
        • 2.Sf7#
      • 1...Ra4
        • 2.c4#
      • 1...Rb4
        • 2.cxb4#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rc5
        • 2.c4#
      • 1...Rc6
        • 2.c4#
      • 1...Rc7
        • 2.c4#
      • 1...Rc8
        • 2.c4#
      • 1...Bf1
        • 2.Qh2#
      • 1...Bh1
        • 2.Qh2#
      • 1...Bh3
        • 2.Qh2#
      • 1...Sa4
        • 2.Sxc4#
      • 1...Sd5
        • 2.Sxc4#
      • 1...Sa8
        • 2.Sxc4#
      • 1...Sc8
        • 2.Sxc4#
      • 1...e3
        • 2.Sd3#
      • 1...g5
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,P_SPINR(b),XP(C)::QAB(B),XR(b)
    • R(b);OGATE::QAB(B)+P(C)
    • R(b);OGATE::QAB(B)+P(C),XR(b)
    • R(b);OGATE::P(C),XR(b)
    • B(a);OGATE::QAB(B)
    • S(e);N_GUARD::R1(G)
    • S(e);N_GUARD::R1(G),XS(e)
  • Actual
    • S(E);
    • Vars
      • R(b);OGATE,P_SPINR(b),XP(C)::QAB(B),XR(b)
      • B(a);OGATE,XR(D)::QAB(B)
      • P(c);N_GUARD,XR(D)::S(A)
      • P(g);OGATEB,SBLOCK,XS(E)::R(G)
      • S(e);N_GUARD::S(E),XR(b)
      • P(g);SBLOCK::S(E)
      • R(b);OGATE::QAB(B)+P(C)
      • R(b);OGATE::QAB(B)+P(C),XR(b)
      • R(b);OGATE::P(C),XR(b)
      • B(a);OGATE::QAB(B)
      • P(c);N_GUARD::S(A)
      • P(f);N_GUARD::R1(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).