MESON Chess Problem Database

Problem Display
PID: 219882 (2b5/2nqN3/5B2/2PNp3/1QPk4/r2Pp3/8/3RK2B w - - 0 1)

Nemmer, Max F

von Dehn, Bodo

Land og Folk, 0000

2b5/2nqN3/5B2/2PNp3/1QPk4/r2Pp3/8/3RK2B

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sc6#
    • 1...Qg4
      • 2.Sc6#
    • 1...Qb5
      • 2.cxb5#
    • 1...Qf5
      • 2.Sc6#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qxd5
      • 2.cxd5#
    • 1...Qd8
      • 2.Sc6#
    • 1...Sb5
      • 2.cxb5#
    • 1...Sxd5
      • 2.cxd5#
    • 1...Se6
      • 2.Sf5#
  • Tries
    • 1.Qb2+?
      • 1...Kxc5
        • 2.Qb6#
      • 1...Rc3!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Bxe3#
      • 1...Qxd5
        • 2.cxd5#
      • 1...Sxd5
        • 2.cxd5#
      • 1...e4
        • 2.Bf6#
      • 1...Qh3
        • 2.Sc6#
      • 1...e2
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(f);N_GUARD::S(J)
    • Q(f);OGATE::QAR(E)+P(F),XQ(f)
    • Q(f);N_GUARD::S(J),XQ(f)
    • Q(f);OGATE,XS(H)::QAR(E)+P(F),XQ(f)
    • S(e);OGATE::QAR(E)+P(F),XS(e)
    • S(e);OGATE,XS(H)::QAR(E)+P(F),XS(e)
    • S(e);S_CUTQ(f)::S(J)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);N_SPINP(d),OGATEB,S_FLIGHT,XP(G)::QAB1(E)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • B(I);N_PINP(d)
    • Threat
      • B(I),XP(b)
    • Vars
      • Q(f);OGATE,XS(H)::QAR(E)+P(F),XQ(f)
      • S(e);OGATE,XS(H)::QAR(E)+P(F),XS(e)
      • P(d);OGATEB::B(I)
      • Q(f);N_GUARD::S(J)
      • P(b);::B(I)
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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).