MESON Chess Problem Database

Problem Display
PID: 6243 (5N1n/2B4p/BPk3qR/6R1/p1p3N1/2r5/1nQP2b1/1K6 w - - 0 1)

Hertmann, Sandor

HM., Chess Amateur (The) (Valve Ty.), 1928

5N1n/2B4p/BPk3qR/6R1/p1p3N1/2r5/1nQP2b1/1K6

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Rxd6#
    • 1...Qe6
      • 2.Rxe6#
    • 1...Qf6
      • 2.Rxf6#
    • 1...Rf3
      • 2.Qe4#
    • 1...Bf1
      • 2.Qe4#
    • 1...Bh3
      • 2.Qe4#
    • 1...Be4
      • 2.Qxe4#
    • 1...Sd3
      • 2.Qxa4#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Sb8#
      • 1...Bd5
        • 2.Sge5#
      • 1...Kxd7!
  • Keys
    • 1.d4!
      • threat
        • 2.Rc5#
      • 1...cxd4 ep
        • 2.Qxg2#
      • 1...Bd5
        • 2.Se5#
      • 1...Sd3
        • 2.Qxa4#
        • 2.Qxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(g);N_PINQ(B),OGATE::R1(H),XQ(g)
    • Q(g);N_PINQ(B),OGATE::R(H),XQ(g)
    • R(c);P_SPINP(e),S_CUTB(b)::QAB(B)
    • B(b);N_GUARD::QAB(B)
    • B(b);N_GUARD::QAB(B),XB(b)
    • S(a);N_PINQ(B)::QAB(B),XP(d)
  • Tries
    • Try
      • S(J);
      • Threat
        • S(J)
      • Vars
        • B(b);SBLOCK::S(D)
      • Refutation
        • K(f);N_SPINQ(g),S_FLIGHT,XS(J)
  • Actual
    • P(C);
    • Threat
      • R1(E)
    • Vars
      • P(e);EP,N_PINQ(B),P_SPINR(c),XP(C)::QAB(B),XB(b)
      • B(b);SBLOCK::S(D)
HTML5 logo

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).