MESON Chess Problem Database

Problem Display
PID: 100835 (5b2/Rp6/1pP1Qp2/1k1P1N2/7K/nB1N1b2/1q3p1P/r7 w - - 0 1)

Andreu, Luis

Good Companions, 1919

5b2/Rp6/1pP1Qp2/1k1P1N2/7K/nB1N1b2/1q3p1P/r7

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sd4#
    • 1...Qd4+
      • 2.Sxd4#
    • 1...Qb1
      • 2.Sd4#
    • 1...Qa2
      • 2.Sd4#
    • 1...Qc2
      • 2.Sd4#
    • 1...Qd2
      • 2.Sd4#
    • 1...Qe2
      • 2.Sd4#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Bh6
      • 2.Sd6#
    • 1...Bg7
      • 2.Sd6#
    • 1...bxc6
      • 2.Qxc6#
  • Keys
    • 1.d6!
      • threat
        • 2.Ba4#
      • 1...Qd4+
        • 2.Sxd4#
      • 1...Kxc6
        • 2.Qe8#
      • 1...Qxb3
        • 2.Sd4#
      • 1...Qc2
        • 2.Sd4#
      • 1...Bd1
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::S(F)
    • Q(b);CHECK,N_GUARD::S(F),XQ(b)
    • B(j);N_GUARD::S(F),XB(j)
    • B(j);N_GUARD::S(F)
    • P(i);OGATE,XP(G)::QAB1(H),XP(i)
  • Actual
    • P(E);
    • Threat
      • B(B)
    • Vars
      • Q(b);CHECK,N_GUARD::S(F),XQ(b)
      • K(f);OGATEB,S_FLIGHT,XP(G)::QAB(H)
      • Q(b);N_GUARD,XB(B)::S(F)
      • Q(b);N_GUARD::S(F)
      • B(e);N_GUARD::QAR2(H)
      • B(e);N_GUARD::QAR2(H),XB(e)
      • S(d);N_GUARD::QAB1(H)
      • S(d);N_GUARD::QAB1(H),XS(d)
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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).