MESON Chess Problem Database

Problem Display
PID: 154875 (2Q5/1pp2n2/2r4B/2NpN2r/b2k3q/1p6/1P2R3/K1R3n1 w - - 0 1)

Deuzemann, J

Alkmaarsche Courant, 1913

2Q5/1pp2n2/2r4B/2NpN2r/b2k3q/1p6/1P2R3/K1R3n1

#2

8 + 11

102 Probleemblad 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Qg4#
    • 1...Qe7
      • 2.Qg4#
    • 1...Qd8
      • 2.Qg4#
    • 1...Qg4
      • 2.Qxg4#
    • 1...Rxe5
      • 2.Rd2#
    • 1...Rxc5
      • 2.Rd1#
    • 1...Re6
      • 2.Sxe6#
    • 1...Bb5
      • 2.Sxb3#
    • 1...Sxe2
      • 2.Sf3#
    • 1...Sf3
      • 2.Sxf3#
    • 1...Sh3
      • 2.Sf3#
    • 1...Sxe5
      • 2.Be3#
    • 1...Sd6
      • 2.Se6#
    • 1...b5
      • 2.Sxc6#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Rc4#
      • 1...Rxe5
        • 2.Rd2#
      • 1...Rxc5
        • 2.Rd1#
      • 1...Sxe2
        • 2.Sf3#
      • 1...Sxe5
        • 2.Be3#
      • 1...Qe4
        • 2.Rxe4#
      • 1...Qe1
        • 2.Qg4#
      • 1...Rd6
        • 2.Qxa4#
      • 1...Bb5
        • 2.Sxb3#
      • 1...Sd6
        • 2.Se6#
      • 1...b5
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(e);N_GUARD,P_PINR(B)::QAR(H)
    • Q(e);N_GUARD::QAR(H)
    • Q(e);N_GUARD::QAR(H),XQ(e)
    • R(g);SBLOCK,XS(F)::R(D)
    • R(h);SBLOCK,XS(E)::R(B)
    • R(h);N_GUARD::S(E),XR(h)
    • B(c);N_GUARD::S(E),XP(b)
    • S(a);N_GUARD,XR(D)::S(F)
    • S(a);N_GUARD::S(F),XS(a)
    • S(a);N_GUARD::S(F)
    • S(k);SBLOCK,XS(F)::B(G)
    • S(k);S_CUTR(h)::S(E)
    • P(i);N_GUARD,S_CUTB(c)::S(F),XR(h)
  • Actual
    • Q(H);P_PINP(f)
    • Threat
      • R1(B)
    • Vars
      • R(g);SBLOCK,XS(F)::R(D)
      • R(h);SBLOCK,XS(E)::R(B)
      • S(a);N_GUARD,XR(D)::S(F)
      • S(k);SBLOCK,XS(F)::B(G)
      • Q(e);N_GUARD::R1(D),XQ(e)
      • Q(e);N_GUARD,P_PINR(B)::QAR(H)
      • R(h);N_SPINP(f),OGATE::QAR(H),XB(c)
      • B(c);N_GUARD::S(E),XP(b)
      • S(k);N_SPINP(f),S_CUTR(h)::S(E)
      • P(i);N_GUARD,S_CUTB(c)::S(F),XR(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).