MESON Chess Problem Database

Problem Display
PID: 264167 (3b4/2p4N/qpr5/1B1p4/2NPk1bp/1R2PR2/1B1p2nK/1n1Q4 w - - 0 1)

May, Willy Paul

Tijdschrift vd KNSB, 1954

3b4/2p4N/qpr5/1B1p4/2NPk1bp/1R2PR2/1B1p2nK/1n1Q4

#2

10 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sg5#
    • 1...Bxf3
      • 2.Qc2#
      • 2.Qxb1#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Sa3
      • 2.Sxd2#
    • 1...Sc3
      • 2.Sxd2#
    • 1...Se1
      • 2.Rf4#
    • 1...Sxe3
      • 2.Rbxe3#
    • 1...Sf4
      • 2.Rxf4#
    • 1...dxc4
      • 2.Bxc6#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Rf4#
      • 1...Kxf3
        • 2.Qxg2#
      • 1...Bxf3
        • 2.Qxb1#
      • 1...Sxe3
        • 2.Rbxe3#
      • 1...dxc4
        • 2.Bxc6#
      • 1...Sc3
        • 2.Sxd2#
      • 1...Rf6
        • 2.Sg5#
      • 1...Bg5
        • 2.Sxg5#
      • 1...Sf4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(j);S_CUTB(l)::S(J)
    • B(l);N_GUARD::S(J),XB(l)
    • S(a);N_GUARD::S(G),XP(b)
    • S(c);N_GUARD::R1(F)
    • S(c);OGATE,XP(E)::R1(D),XS(c)
    • S(c);N_GUARD::R1(F),XS(c)
    • P(g);OGATEB,XS(G)::B(I),XR(j)
  • Actual
    • Q(A);
    • Threat
      • R1(F)
    • Vars
      • K(d);OGATEB,P_SPINS(c),S_FLIGHT,XR(F)::QAB1(A),XS(c)
      • B(e);SBLOCK,XR(F)::QAB(A),XS(a)
      • S(c);OGATE,XP(E)::R1(D),XS(c)
      • P(g);OGATEB,XS(G)::B(I),XR(j)
      • S(a);N_GUARD::S(G),XP(b)
      • R(j);S_CUTB(l)::S(J)
      • B(l);N_GUARD::S(J),XB(l)
      • S(c);::QAB(A)+R(F),DCHECK,XS(c)
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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).