MESON Chess Problem Database
Problem Display
PID: 146802 (8/2K1pQ2/p1p1p3/Rb2N3/1k2p3/1P2P3/1PP5/8 w - - 0 1)
Yakovlev, Yuri Nikolayevich
Canadian Chess Chat, 1983
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Sxc6#
- 1...Be2
- 2.Sxc6#
- 1...Bd3
- 2.Sxc6#
- 1...Bc4
- 2.Sxc6#
- 1...Bf1
- Tries
- 1.Kb6?
- 1...Bf1
- 2.Sxc6#
- 2.Ra4#
- 1...Be2
- 2.Sxc6#
- 2.Ra4#
- 1...Bd3
- 2.Sxc6#
- 2.Ra4#
- 1...Ba4
- 2.Rxa4#
- 1...Bc4
- 2.Sxc6#
- 2.Ra4#
- 1...c5!
- 1...Bf1
- 1.Qf2?
- 1...Kxa5
- 2.Qe1#
- 2.Qd2#
- 1...c5
- 2.Qe1#
- 2.Qd2#
- 1...Bf1
- 2.Sxc6#
- 2.Qe1#
- 2.Qd2#
- 1...Be2
- 2.Sxc6#
- 2.Qe1#
- 1...Bd3
- 2.Sxc6#
- 2.Qe1#
- 2.Qd2#
- 1...Ba4
- 2.Qe1#
- 2.Qd2#
- 1...Bc4
- 2.Sxc6#
- 2.Qe1#
- 2.Qd2#
- 1...Kc5!
- 1...Kxa5
- 1.Kb6?
- Keys
- 1.Qf1!
- 1...Kxa5
- 2.Qe1#
- 1...Kc5
- 2.Qc4#
- 1...Bxf1
- 2.Sxc6#
- 1...c5
- 2.Qe1#
- 1...Be2
- 2.Sxc6#
- 2.Qe1#
- 1...Bd3
- 2.Sxc6#
- 2.Qe1#
- 1...Ba4
- 2.Qe1#
- 1...Bc4
- 2.Sxc6#
- 2.Qe1#
- 1...Kxa5
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(c);N_GUARD::S(F),XP(e)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- B(c);N_GUARD::R1(E),XB(c)
- Refutation
- P(e);
- Try
- Q(H);
- Refutation
- K(a);P_SPINB(c),S_FLIGHT
- Try
- Actual
- Q(H);
- Vars
- K(a);S_FLIGHT,XR(E)::QAB(H)
- K(a);P_SPINB(c),S_FLIGHT::QAR1(H)
- B(c);N_GUARD,XQ(H)::S(F),XP(e)
- P(e);SBLOCK::QAB(H)
- B(c);::QAB(H)
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).