MESON Chess Problem Database

Problem Display
PID: 181807 (3b4/B2R4/pPP1p3/r1k1P3/3N4/1B6/5P2/qb2Q1K1 w - - 0 1)

Schuld, Henk L

HM., Islands Allehanda, 1905

3b4/B2R4/pPP1p3/r1k1P3/3N4/1B6/5P2/qb2Q1K1

#2

10 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qxa5#
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qa2
      • 2.Qc3#
    • 1...Qa3
      • 2.Qc3#
    • 1...Bh4
      • 2.b7#
    • 1...Bg5
      • 2.b7#
    • 1...Bf6
      • 2.b7#
    • 1...Bc7
      • 2.bxc7#
    • 1...Be7
      • 2.b7#
  • Keys
    • 1.Rc7!
      • threat
        • 2.b7#
      • 1...Kxd4
        • 2.Qe3#
      • 1...Qxd4
        • 2.Qxa5#
      • 1...Bxc7
        • 2.bxc7#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Rb5
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::QAR2(A),XR(c)
    • Q(a);N_GUARD::QAR2(A),XQ(a)
    • Q(a);N_GUARD::QAR2(A)
    • B(g);N_GUARD::B(I)+P(G)
    • B(g);OGATE::B(I)+P(G),XB(g)
  • Actual
    • R(J);
    • Threat
      • B(I)+P(G)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
      • Q(a);N_GUARD,P_PINP(C),SBLOCK,XS(E)::QAR2(A),XR(c)
      • B(g);OGATE,XR(J)::B(I)+P(G),XB(g)
      • Q(a);N_GUARD::QAR2(A),XQ(a)
      • R(c);SBLOCK::S(E),XP(f)
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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).