MESON Chess Problem Database

Problem Display
PID: 19001 (8/2Q2prp/KB6/p2R1Pkr/6Np/3pb3/5PR1/4q3 w - - 0 1)

Ferber, Eugene

1st Prize, Karlstadt Chess Club, 1911

8/2Q2prp/KB6/p2R1Pkr/6Np/3pb3/5PR1/4q3

#2

8 + 10

17453 Liverpool and Merseyside Illustrated 1912

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Bxe3#
    • 1...Qa1
      • 2.Bxe3#
    • 1...Qb1
      • 2.Bxe3#
    • 1...Qd1
      • 2.Bxe3#
    • 1...Qf1
      • 2.Bxe3#
    • 1...Qg1
      • 2.Bxe3#
    • 1...Qh1
      • 2.Bxe3#
    • 1...Rg6
      • 2.f6#
    • 1...Bd4
      • 2.f4#
    • 1...Bc5
      • 2.f4#
    • 1...Bxb6
      • 2.f4#
  • Tries
    • 1.Sh2+?
      • 1...Kf6
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qd8#
      • 1...Kh6!
    • 1.Sxe3+?
      • 1...Kf6
        • 2.Bd4#
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qd8#
      • 1...Kh6!
    • 1.Sf6+?
      • 1...Kxf6
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qd8#
      • 1...Kh6!
    • 1.Sh6+?
      • 1...Kf6
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qd8#
      • 1...Kxh6!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Bf6#
      • 1...Rh6+
        • 2.Sf6#
      • 1...Rg6+
        • 2.f6#
      • 1...Bxd4
        • 2.f4#
      • 1...Qc3
        • 2.Bxe3#
      • 1...Qa1
        • 2.Bxe3#
      • 1...f6
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::B(G),XB(c)
    • R(i);P_PINB(G),SBLOCK::R(D)+P(E)
    • B(c);N_GUARD::P(A)
    • B(c);N_GUARD,XB(G)::P(A)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(C);CHECK,XB(c)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);S_FLIGHT,XS(C)
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • R(g);CHECK,SBLOCK::R(B)+S(C)
      • R(i);CHECK,SBLOCK::R(D)+P(E)
      • B(c);N_GUARD,XB(G)::P(A)
      • Q(a);N_GUARD::B(G),XB(c)
      • P(h);::B(G),XP(h)
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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).