MESON Chess Problem Database

Problem Display
PID: 87437 (1K1b4/6nb/N1p5/2Bk3q/1Pp2P2/3PRrp1/5rN1/6QB w - - 0 1)

Bennett, Frederick

American Chess Problemist, 1949

1K1b4/6nb/N1p5/2Bk3q/1Pp2P2/3PRrp1/5rN1/6QB

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.Re5#
    • 1...Qg6
      • 2.Re5#
    • 1...Qf7
      • 2.Re5#
    • 1...Qxh1
      • 2.Re5#
    • 1...Qh2
      • 2.Re5#
    • 1...Qh3
      • 2.Re5#
    • 1...Qh4
      • 2.Re5#
    • 1...Qe5+
      • 2.Rxe5#
    • 1...Qh6
      • 2.Re5#
    • 1...Rxf4
      • 2.Sxf4#
    • 1...Bf5
      • 2.Re5#
    • 1...Bh4
      • 2.Sc7#
    • 1...Bg5
      • 2.Sc7#
      • 2.Re5#
    • 1...Bf6
      • 2.Sc7#
    • 1...Bc7+
      • 2.Sxc7#
    • 1...Be7
      • 2.Sc7#
    • 1...Sf5
      • 2.Re5#
  • Keys
    • 1.Re7!
      • threat
        • 2.Se3#
      • 1...Qe5+
        • 2.Rxe5#
      • 1...Bc7+
        • 2.Sxc7#
      • 1...Qxh1
        • 2.Re5#
      • 1...Rxg2
        • 2.Qd4#
      • 1...Bxe7
        • 2.Sc7#
      • 1...Re2
        • 2.Qd4#
      • 1...Re3
        • 2.Sxe3#
      • 1...Be4
        • 2.dxe4#
      • 1...Sf5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 11
  • Sets
    • Q(f);N_GUARD::R1(E)
    • Q(f);N_GUARD,XB(B)::R1(E)
    • Q(f);CHECK,N_GUARD::R1(E),XQ(f)
    • R(b);XP(G)::B(B)+S(C),DCHECK,XR(b)
    • B(i);S_CUTQ(f)::R1(E)
    • B(j);N_GUARD::S(I)
    • B(j);CHECK,N_GUARD::S(I),XB(j)
    • S(h);S_CUTQ(f)::R1(E)
  • Actual
    • R(E);
    • Threat
      • S(C)
    • Vars
      • Q(f);CHECK,N_GUARD::R1(E),XQ(f)
      • B(j);CHECK,N_GUARD::S(I),XB(j)
      • Q(f);N_GUARD,XB(B)::R1(E)
      • R(a);OGATE,XS(C)::QAR1(A)
      • B(j);N_GUARD,XR(E)::S(I)
      • R(a);OGATE::QAR1(A)
      • R(b);::B(B)+S(C),DCHECK,XR(b)
      • B(i);OGATE::P(D),XB(i)
      • S(h);S_CUTQ(f)::R1(E)
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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).