MESON Chess Problem Database

Problem Display
PID: 243665 (b7/1Q6/2nRpp1b/2p2N2/2p1k3/3NB2K/5R2/8 w - - 0 1)

Banaszek, Marcin

Szachy, 1987

b7/1Q6/2nRpp1b/2p2N2/2p1k3/3NB2K/5R2/8

#2

7 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Sg3#
    • 1...Bf4
      • 2.Rxf4#
    • 1...Bg7
      • 2.Rf4#
    • 1...Bf8
      • 2.Rf4#
    • 1...e5
      • 2.Sxc5#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Sxc5#
      • 1...Kxd3
        • 2.Qb1#
      • 1...cxd3
        • 2.Sg3#
      • 1...cxd4
        • 2.Rxd4#
      • 1...Bf4!
    • 1.Rxe6+?
      • 1...Kd5
        • 2.Qd7#
      • 1...Kxd3!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Sg3#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Bxf4
        • 2.Rxf4#
      • 1...exf5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(g);SBLOCK,XB(C)::S(E)
    • B(g);N_GUARD::R1(A),XB(g)
    • B(g);N_GUARD::R1(A)
    • P(e);SBLOCK::S(B),XP(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • S(B),XP(c)
      • Vars
        • K(b);N_SPINS(d),OGATEB,S_FLIGHT,XS(B)::QAB(G)
        • P(a);SBLOCK,XS(B)::S(E)
        • P(c);OGATE,XB(C)::R1(F),XP(c)
      • Refutation
        • B(g);
    • Try
      • R(F);CHECK,XP(e)
      • Vars
        • K(b);S_FLIGHT::QAR2(G)
      • Refutation
        • K(b);N_SPINS(d),S_FLIGHT,XS(B)
  • Actual
    • B(C);
    • Threat
      • S(E)
    • Vars
      • K(b);N_SPINS(d),OGATEB,S_FLIGHT,XS(E)::QAB(G)
      • B(g);OGATE,XB(C)::R1(A),XB(g)
      • P(e);SBLOCK,XS(E)::S(B),XP(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).