MESON Chess Problem Database
Problem Display
PID: 243061 (4R3/8/8/8/1pKpN3/8/2k5/Q7 w - - 0 1)
Alekseev, Yuri Mikhailovich
Sem Shakhmatnikh not, 2017
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Kxb4?
- 1...d3
- 2.Rc8#
- 1...Kd3!
- 1...d3
- 1.Kxd4?
- 1...b3
- 2.Rc8#
- 1...Kb3!
- 1...b3
- 1.Sf2?
- threat
- 2.Re2#
- 1...Kd2
- 2.Qb2#
- 2.Qd1#
- 1...d3!
- threat
- 1.Sc3?
- threat
- 2.Re2#
- 1...Kd2
- 2.Re2#
- 2.Qb2#
- 2.Qd1#
- 1...d3!
- threat
- 1.Sg3?
- threat
- 2.Re2#
- 1...Kd2
- 2.Re2#
- 1...d3!
- threat
- 1.Qb2+?
- 1...Kd1
- 2.Sf2#
- 2.Qd2#
- 1...Kxb2!
- 1...Kd1
- 1.Qa2+?
- 1...Kd1
- 2.Qd2#
- 1...Kc1!
- 1...Kd1
- 1.Kxb4?
- Keys
- 1.Rc8!
- 1...d3
- 2.Kxb4#
- 1...b3
- 2.Kxd4#
- 1...d3
- 1.Rc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(B);P-FLIGHT,XP(b)
- Vars
- P(c);SBLOCK::R(D)
- Refutation
- K(a);S_FLIGHT
- Try
- K(B);P-FLIGHT,XP(c)
- Vars
- P(b);SBLOCK::R(D)
- Refutation
- K(a);S_FLIGHT
- Try
- S(C);
- Threat
- R(D)
- Refutation
- P(c);
- Try
- S(C);
- Threat
- R(D)
- Refutation
- P(c);
- Try
- S(C);
- Threat
- R(D)
- Vars
- K(a);P-FLIGHT::R1(D)
- Refutation
- P(c);
- Try
- Q(A);CHECK
- Refutation
- K(a);P-FLIGHT,XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(a);OGATE,S_FLIGHT::QAR1(A)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- R(D);
- Vars
- P(c);SBLOCK::R(D)+K(B),XP(b)
- P(b);SBLOCK::R(D)+K(B),XP(c)
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).