MESON Chess Problem Database

Problem Display
PID: 98333 (3R4/pbP2pP1/N2pk3/rnR1PpB1/2q2Q1K/p1rp1p2/B6n/8 w - - 0 1)

Mihalek, Frederick M

US Problem Bulletin, 1990

3R4/pbP2pP1/N2pk3/rnR1PpB1/2q2Q1K/p1rp1p2/B6n/8

#2

10 + 14

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.c8Q#
      • 2.c8B#
    • 1...Bd5
      • 2.c8Q#
      • 2.c8B#
    • 1...Ba8
      • 2.c8Q#
      • 2.c8B#
    • 1...Sd4
      • 2.Rxd6#
    • 1...Sxc7
      • 2.Sxc7#
      • 2.Rxd6#
    • 1...dxc5
      • 2.Sxc5#
    • 1...dxe5
      • 2.Rxe5#
  • Tries
    • 1.g8Q?
      • threat
        • 2.Qe8#
      • 1...Sxc7
        • 2.Sxc7#
        • 2.Rxd6#
      • 1...Bc6!
  • Keys
    • 1.exd6!
      • threat
        • 2.Re5#
      • 1...Sxd6
        • 2.Rxd6#
      • 1...Sxc7
        • 2.Sxc7#
      • 1...f6
        • 2.g8Q#
        • 2.g8B#
      • 1...Qd5
        • 2.Qe3#
      • 1...Bd5
        • 2.c8Q#
        • 2.c8B#
      • 1...Sg4
        • 2.Qxf5#
      • 1...Sd4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(m);N_GUARD,N_PINQ(B)::P=Q
    • B(m);N_GUARD,N_SPINQ(f)::P=Q
    • B(m);N_GUARD::P=Q
    • S(h);N_GUARD,N_PINQ(B)::R1(J),XP(j)
    • P(j);XR(D)::S(G),XP(j)
    • P(j);OGATE,XP(E)::R1(D),XP(j)
  • Tries
    • Try
      • P(I);P_PINP(n)
      • Threat
        • QAR2(I)
      • Refutation
        • B(m);
  • Actual
    • P(E);XP(j)
    • Threat
      • R1(D)
    • Vars
      • S(h);OGATE,XP(E)::R1(J),XS(h)
      • S(h);XP(H)::S(G),XS(h)
      • P(n);::P=Q
      • Q(f);N_PINQ(B)::QAR(B)
      • B(m);N_GUARD,N_SPINQ(f)::P=Q
      • S(a);N_PINQ(B)::QAB1(B),XP(i)
      • S(h);N_PINQ(B)::QAR1(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).