MESON Chess Problem Database

Problem Display
PID: 193853 (8/1p6/3nK3/N3pBQ1/pp1k4/2R1r3/p2q1P1p/4B1b1 w - - 0 1)

Stark, Erno

Pesti Naplo, 1916

8/1p6/3nK3/N3pBQ1/pp1k4/2R1r3/p2q1P1p/4B1b1

#2

7 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qxe3#
    • 1...Qb2
      • 2.Qxe3#
    • 1...Qc2
      • 2.Qxe3#
    • 1...Rxe1
      • 2.Qxd2#
    • 1...Re4
      • 2.Qxd2#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sb5
      • 2.Rc4#
    • 1...Sf7
      • 2.Rc4#
    • 1...Sc8
      • 2.Rc4#
    • 1...Se8
      • 2.Rc4#
    • 1...e4
      • 2.Qf6#
      • 2.Qg7#
  • Keys
    • 1.Be4!
      • threat
        • 2.Qxe5#
      • 1...Kxc3
        • 2.Qxe5#
      • 1...Kxe4
        • 2.Qg4#
      • 1...Rxe4
        • 2.Qxd2#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sf5
        • 2.Rc4#
      • 1...Sf7
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::QAB1(F),XR(e)
    • R(e);OGATE,XB(A)::QAR2(F),XQ(c)
    • R(e);OGATE::QAR2(F),XQ(c)
    • S(j);N_GUARD::R1(C),XS(j)
    • S(j);N_GUARD::R1(C)
  • Actual
    • B(E);
    • Threat
      • QAB1(F),XP(i)
    • Vars
      • K(h);P_SPINQ(c),S_FLIGHT,XR(C)::QAB(F),XP(i)
      • K(h);OGATEB,P-FLIGHT,XB(E)::QAR2(F)
      • R(e);OGATE,SBLOCK,XB(E)::QAR2(F),XQ(c)
      • S(j);N_GUARD::R1(C),XS(j)
      • S(j);N_GUARD::R1(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).