MESON Chess Problem Database

Problem Display
PID: 120989 (2Q5/4R3/8/3ppPNK/R3bk2/4b3/7P/2B5 w - - 0 1)

Amirov, Talip Khasanovich

The Problemist, 1980

2Q5/4R3/8/3ppPNK/R3bk2/4b3/7P/2B5

#2

8 + 5

6490 yacpdb 2009
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Bxd2#
  • Tries
    • 1.Se6+?
      • 1...Kxf5
        • 2.Rf7#
        • 2.Qf8#
      • 1...Kf3!
    • 1.Rf7?
      • 1...Bxc1
        • 2.Qxc1#
      • 1...Bd2
        • 2.Bxd2#
      • 1...d4!
    • 1.Qe6?
      • threat
        • 2.Qxe5#
      • 1...Bd2
        • 2.Bxd2#
      • 1...Bxc1!
    • 1.Qc2?
      • threat
        • 2.Qf2#
      • 1...Kxf5
        • 2.Rf7#
      • 1...d4
        • 2.Qxe4#
      • 1...Bd2!
    • 1.Qc3?
      • threat
        • 2.Qxe5#
      • 1...Kxf5
        • 2.Rf7#
        • 2.Qxe5#
      • 1...Bxc1
        • 2.Qf3#
      • 1...Bd2
        • 2.Qf3#
      • 1...d4!
    • 1.f6?
      • threat
        • 2.Qg4#
      • 1...Bd2
        • 2.Bxd2#
      • 1...Bxc1!
  • Keys
    • 1.Qc5!
      • 1...Kxf5
        • 2.Rf7#
      • 1...Bxc1
        • 2.Qf2#
      • 1...d4
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATEB::B(A),XB(a)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(c);N_SPINB(a),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • B(a);N_SPINB(a),OGATE,P_SPINB(b),XB(A)::QAB(H),XB(a)
        • B(a);OGATEB::B(A),XB(a)
      • Refutation
        • P(d);
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XP(e)
      • Vars
        • B(a);OGATEB::B(A),XB(a)
      • Refutation
        • B(a);N_SPINB(a),P_SPINB(b),XB(A)
    • Try
      • Q(H);
      • Threat
        • QAR2(H)
      • Vars
        • K(c);N_SPINB(a),OGATEB,P-FLIGHT,P_SPINB(b),XP(D)::R(G)
        • P(d);N_GUARD::QAR1(H),XB(b)
      • Refutation
        • B(a);
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XP(e)
      • Vars
        • B(a);N_SPINB(a),OGATE,P_SPINB(b),XB(A)::QAR1(H)
        • B(a);OGATE::QAR1(H)
      • Refutation
        • P(d);
    • Try
      • P(D);
      • Threat
        • QAR1(H)
      • Vars
        • B(a);OGATEB::B(A),XB(a)
      • Refutation
        • B(a);N_SPINB(a),P_SPINB(b),XB(A)
  • Actual
    • Q(H);
    • Vars
      • K(c);N_SPINB(a),OGATEB,P-FLIGHT,XP(D)::R(G)
      • B(a);N_SPINB(a),OGATE,P_SPINB(b),XB(A)::QAR2(H)
      • P(d);OGATE::QAB1(H),XP(e)
      • B(a);OGATE::QAR2(H)
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).