MESON Chess Problem Database

Problem Display
PID: 233574 (8/K1N5/B1p5/2k3qR/2P2Q2/7b/3B1br1/8 w - - 0 1)

Witt, Andreas

Freie Presse, 2002

8/K1N5/B1p5/2k3qR/2P2Q2/7b/3B1br1/8

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qf5
      • 2.Se6#
    • 1...Rg4
      • 2.Se6#
    • 1...Bd4
      • 2.Qf8#
    • 1...Bf5
      • 2.Qe5#
    • 1...Be6
      • 2.Sxe6#
  • Tries
    • 1.Se8?
      • threat
        • 2.Qd6#
      • 1...Qe5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Bg3
        • 2.Qe3#
      • 1...Qd5!
    • 1.Rxg5+?
      • 1...Bf5
        • 2.Se6#
        • 2.Rxf5#
        • 2.Qe5#
      • 1...Rxg5!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qf8#
      • 1...Qf5
        • 2.Se6#
      • 1...Bg3
        • 2.Qd4#
      • 1...Bf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(e);N_GUARD::QAR2(C),XQ(e)
    • Q(e);S_CUTB(c)::S(G)
    • R(b);S_CUTB(c)::S(G)
    • B(a);SBLOCK::QAB(C)
    • B(c);N_SPINQ(e),S_CUTQ(e)::QAR2(C)
    • B(c);N_GUARD::S(G),XB(c)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB1(C)
      • Vars
        • B(a);N_GUARD::QAB(C)
      • Refutation
        • Q(e);
    • Try
      • R(D);CHECK,XQ(e)
      • Refutation
        • R(b);XR(D)
  • Actual
    • B(A);
    • Threat
      • QAB(C)
    • Vars
      • Q(e);S_CUTB(c)::S(G)
      • B(a);N_GUARD::QAB1(C)
      • B(c);N_SPINQ(e),S_CUTQ(e)::QAR2(C)
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).