MESON Chess Problem Database

Problem Display
PID: 83478 (1bb2n2/5rp1/2p4R/4k3/2R2NpQ/3p2N1/3prp2/4nK2 w - - 0 1)

Ellerman, Arnoldo

2nd Prize, Good Companions (March), 1916

1bb2n2/5rp1/2p4R/4k3/2R2NpQ/3p2N1/3prp2/4nK2

#2

6 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rxe4#
    • 1...Rd7
      • 2.Qg5#
    • 1...Sd7
      • 2.Re6#
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qd4#
      • 1...Rxf4
        • 2.Rc5#
      • 1...Re4
        • 2.Rxe4#
      • 1...Rd7
        • 2.Qg5#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Ba7
        • 2.Qd6#
      • 1...Bd7
        • 2.Qxb8#
      • 1...Sc2
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sxd3#
      • 1...Se6
        • 2.Sg6#
      • 1...Sd7
        • 2.Re6#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::R1(C),XR(c)
    • R(i);N_GUARD,S_CUTB(l)::QAR2(E)
    • S(m);N_GUARD,S_CUTB(l)::R1(F)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • R(i);SBLOCK,XS(D)::R(C)
      • R(c);N_GUARD::R1(C),XR(c)
      • R(i);N_GUARD,S_CUTB(l)::QAR2(E)
      • B(k);N_GUARD::QAB1(E),XB(k)
      • B(k);N_GUARD::QAB1(E)
      • B(l);OGATE::QAB(E),XB(k)
      • S(a);N_GUARD::S(D),XP(e)
      • S(m);N_GUARD,SBLOCK::S(D)
      • S(m);N_GUARD,S_CUTB(l)::R1(F)
      • P(h);N_GUARD::QAR1(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).