MESON Chess Problem Database
Problem Display
PID: 276021 (2B5/Q1K5/4R1R1/3p1k2/8/8/6N1/4q3 w - - 0 1)
Kolpakov, Viktor Sergeevich
Koshelenko, Valery Fedotovich
Buletin Problemistic, 2000
#2
6 + 3
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Qxf2#
- 1...Qa1
- 2.Qf2#
- 1...Qb1
- 2.Qf2#
- 1...Qh1
- 2.Qf2#
- 1...Qf2
- Tries
- 1.Sxe1?
- threat
- 2.Qf2#
- 1...Kf4
- 2.Qf2#
- 1...d4!
- threat
- 1.Qe3?
- threat
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qf4#
- 2.Qg5#
- 2.Qf3#
- 2.Qh3#
- 1...Qc3+
- 2.Rc6#
- 1...Qg3+
- 2.Rd6#
- 1...Qa5+
- 2.Rb6#
- 1...Qc1+
- 2.Rc6#
- 1...Qd2
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qh3#
- 2.Qe5#
- 1...Qf2
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qxf2#
- 2.Qg5#
- 2.Qd3#
- 2.Qh3#
- 2.Qe5#
- 1...Qb4
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qg5#
- 2.Qe5#
- 1...Qh4
- 2.Sxh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 1...Qd1
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qf4#
- 2.Qg5#
- 2.Qe5#
- 1...Qf1
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qg5#
- 2.Qh3#
- 2.Qe5#
- 1...Qh1
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qf2#
- 2.Qf4#
- 2.Qg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe5#
- 1...Qe2
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Rg5#
- 2.Qf4#
- 2.Qg5#
- 1...Qxe3!
- threat
- 1.Sxe1?
- Keys
- 1.Qd4!
- threat
- 2.Ref6#
- 2.Qf6#
- 2.Qf4#
- 2.Qg4#
- 1...Qc3+
- 2.Rc6#
- 1...Qg3+
- 2.Rd6#
- 1...Qa5+
- 2.Rb6#
- 1...Qc1+
- 2.Rc6#
- 1...Qe5+
- 2.Qxe5#
- 1...Qxe6
- 2.Sh4#
- 1...Qd2
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 2.Qf6#
- 2.Qg4#
- 1...Qf2
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qxf2#
- 2.Qe5#
- 2.Qf6#
- 2.Qd3#
- 2.Qg4#
- 2.Qxd5#
- 1...Qb4
- 2.Se3#
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 2.Qf6#
- 2.Qxd5#
- 1...Qh4
- 2.Se3#
- 2.Sxh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 2.Qxd5#
- 1...Qa1
- 2.Se3#
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qf2#
- 2.Qd3#
- 2.Qf4#
- 2.Qg4#
- 1...Qd1
- 2.Se3#
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 2.Qf6#
- 2.Qf4#
- 1...Qf1
- 2.Se3#
- 2.Sh4#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Ref6#
- 2.Qe5#
- 2.Qf6#
- 2.Qg4#
- 2.Qxd5#
- 1...Qe2
- 2.Sh4#
- 2.Ref6#
- 2.Qf6#
- 2.Qf4#
- 1...Qe3
- 2.Sxe3#
- 2.Sh4#
- 2.Ref6#
- 2.Qf6#
- 2.Qg4#
- 1...Qe4
- 2.Ref6#
- 2.Qf6#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::QAR(D),XQ(a)
- Q(a);N_GUARD::QAR(D)
- Tries
- Try
- S(A);XQ(a)
- Threat
- QAR(D)
- Vars
- K(c);P-FLIGHT::QAR2(D)
- Refutation
- P(b);
- Try
- Q(D);
- Threat
- DUALS(10)
- Vars
- Q(a);CHECK::B(F)+R(B)
- Refutation
- Q(a);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- DUALS(4)
- Vars
- Q(a);CHECK,N_GUARD::B(F)+R(B)
- Q(a);CHECK,N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD,P_SPINQ(a),XR(B)::S(A)
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).