MESON Chess Problem Database

Problem Display
PID: 16296 (3B2K1/1B2p3/N7/1kN5/2p1R1p1/1q6/7p/1Rrb1Q2 w - - 0 1)

Subotic, Miroslav

The Problemist, 2000

3B2K1/1B2p3/N7/1kN5/2p1R1p1/1q6/7p/1Rrb1Q2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Rxb4#
    • 1...Rc2
      • 2.Rxb3#
    • 1...Bc2
      • 2.Qxc4#
    • 1...Bf3
      • 2.Rxb3#
  • Tries
    • 1.Qxd1?
      • threat
        • 2.Qd7#
      • 1...c3+
        • 2.Rxb3#
        • 2.Qxb3#
      • 1...Rxd1!
    • 1.Qf5?
      • threat
        • 2.Qd7#
      • 1...c3+
        • 2.Se6#
      • 1...e6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qe8#
      • 1...c3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(d);OGATE::R1(A),XQ(d)
    • R(a);S_CUTB(b)::R(A),XQ(d)
    • B(b);S_CUTR(a)::QAB1(B),XP(e)
    • B(b);N_GUARD::R(A),XQ(d)
  • Tries
    • Try
      • Q(B);N_PINP(e),XB(b)
      • Threat
        • QAB(B)
      • Refutation
        • R(a);XQ(B)
    • Try
      • Q(B);N_PINP(e)
      • Threat
        • QAB(B)
      • Vars
        • P(e);CHECK::QAR(B)+S(D)
      • Refutation
        • P(h);
  • Actual
    • Q(B);N_PINP(e)
    • Threat
      • QAB(B)
    • Vars
      • P(e);P_PINQ(B),S_CUTR(a)::QAB1(B)
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).