MESON Chess Problem Database
Problem Display
PID: 50500 (5R2/2R4K/3npP1p/2B1k2p/7Q/1n4P1/5N2/1B6 w - - 0 1)
Kopaev, Viacheslav Georgievich
2nd HM., Die Schwalbe, 1974
#2
9 + 6
| 3335 | Cyclone | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sc4
- 2.Qe4#
- 2.Qxh5#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 2.Qxh5#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 2.Qxh5#
- 1...Sc8
- 2.Qe4#
- 2.Qxh5#
- 1...Se8
- 2.Qe4#
- 2.Qxh5#
- 1...Sa1
- Tries
- 1.Kg6?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc4
- 2.Qe4#
- 2.Qxh5#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 2.Qxh5#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 2.Qxh5#
- 1...Sf7
- 2.Qe4#
- 1...Sc8
- 2.Qe4#
- 2.Qxh5#
- 1...Se8
- 2.Qe4#
- 2.Qxh5#
- 1...Kd5!
- 1...Sxc5
- 1.Sd3+?
- 1...Kf5
- 2.Qf4#
- 1...Kd5!
- 1...Kf5
- 1.Ba2?
- 1...Kd5
- 2.Qd4#
- 1...Kf5
- 2.Qf4#
- 2.Qxh5#
- 1...Sxc5
- 2.Rxc5#
- 2.Qf4#
- 1...Sa1
- 2.Qf4#
- 1...Sc1
- 2.Qf4#
- 1...Sd2
- 2.Qf4#
- 1...Sd4
- 2.Qf4#
- 1...Sa5
- 2.Qf4#
- 1...Sc4
- 2.Qe4#
- 2.Qxh5#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 2.Qxh5#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 2.Qxh5#
- 1...Sc8
- 2.Qe4#
- 2.Qxh5#
- 1...Se8
- 2.Qe4#
- 2.Qxh5#
- 1...Sf7!
- 1...Kd5
- 1.Be4?
- threat
- 2.Sd3#
- 2.Qf4#
- 1...Sxe4
- 2.Qxe4#
- 1...Sc1
- 2.Qf4#
- 1...Sxc5!
- threat
- 1.Bd4+?
- 1...Sxd4
- 2.Rc5#
- 1...Kd5!
- 1...Sxd4
- 1.Kg6?
- Keys
- 1.Rd8!
- 1...Kd5
- 2.Qe4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sf7
- 2.Qf4#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc4
- 2.Qf4#
- 1...Se4
- 2.Qf4#
- 1...Sb5
- 2.Qf4#
- 1...Sf5
- 2.Sd3#
- 1...Sb7
- 2.Qf4#
- 1...Sc8
- 2.Qf4#
- 1...Se8
- 2.Qf4#
- 1...Kd5
- 1.Rd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);OGATE,XB(E)::R(G),XS(a)
- S(d);N_GUARD::QAR1(D),XS(d)
- S(d);N_GUARD::QAR1(D)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- S(a);OGATE,XB(E)::R(G),XS(a)
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(d);N_GUARD::QAR1(D),XS(d)
- S(d);N_GUARD::QAR1(D)
- Refutation
- K(b);P-FLIGHT
- Try
- S(B);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(D)
- Refutation
- K(b);P-FLIGHT
- Try
- B(A);
- Vars
- K(b);P-FLIGHT,P_SPINS(a)::QAR1(D)
- S(a);::QAB1(D)
- S(d);N_GUARD::QAR1(D),XS(d)
- S(d);N_GUARD::QAR1(D)
- Refutation
- S(d);
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,XB(A)::QAR1(D),XS(d)
- S(a);::QAB1(D)
- Refutation
- S(a);XB(E)
- Try
- B(E);CHECK
- Vars
- S(a);XB(E)::R(G)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- R(I);
- Vars
- K(b);P-FLIGHT,P_SPINS(d)::QAB1(D)
- S(a);OGATE,XB(E)::R(G),XS(a)
- S(d);::QAB1(D)
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(d);SBLOCK::S(B)
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).