MESON Chess Problem Database

Problem Display
PID: 272385 (2Q5/2K5/2pP2p1/2p1p3/p3k1P1/r7/2PPNpNn/7B w - - 0 1)

Amirov, Talip Khasanovich

Schakend Nederland, 1969

2Q5/2K5/2pP2p1/2p1p3/p3k1P1/r7/2PPNpNn/7B

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sgf4#
    • 1...Kd5
      • 2.Se3#
    • 1...Sf1
      • 2.Se3#
    • 1...Sxg4
      • 2.Se3#
  • Tries
    • 1.Qf5+?
      • 1...Kd5
        • 2.Se3#
      • 1...gxf5!
    • 1.Qd7?
      • threat
        • 2.Qxc6#
      • 1...Kf3
        • 2.Sgf4#
      • 1...Kd5
        • 2.Se3#
      • 1...Sxg4
        • 2.Se3#
      • 1...Rd3!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qxc6#
      • 1...Kf3
        • 2.Se3#
      • 1...Kd5
        • 2.Sgf4#
      • 1...Sxg4
        • 2.Se3#
      • 1...Rd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(e);S_CUTR(c),S_CUTS(b),S_FLIGHT::B(A)+S(E)
    • K(e);S_FLIGHT::B(A)+S(E),DCHECK
    • S(b);N_GUARD::B(A)+S(E)
    • S(b);N_GUARD,XP(F)::B(A)+S(E)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);P_SPINP(g),S_FLIGHT::B(A)+S(E),DCHECK
      • Refutation
        • P(i);XQ(I)
    • Try
      • Q(I);
      • Threat
        • QAB(I),XP(h)
      • Vars
        • K(e);S_CUTR(c),S_CUTS(b),S_FLIGHT::B(A)+S(E)
        • K(e);S_FLIGHT::B(A)+S(E),DCHECK
        • S(b);N_GUARD,XP(F)::B(A)+S(E)
      • Refutation
        • R(c);
  • Actual
    • Q(I);
    • Threat
      • QAB(I),XP(h)
    • Vars
      • K(e);S_CUTS(b),S_FLIGHT::B(A)+S(E)
      • K(e);S_FLIGHT::B(A)+S(E),DCHECK
      • S(b);N_GUARD,XP(F)::B(A)+S(E)
      • R(c);N_GUARD::QAB1(I),XR(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).