MESON Chess Problem Database
Problem Display
PID: 123248 (1r5r/1R1B4/N3PP2/K5pR/1BPk1p1P/3p1Q2/3p4/8 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Shedey, Sergey Oleksandrovich
Source?, 1980
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...gxh4
- 2.Qxf4#
- 1...g4
- 2.Qxf4#
- 1...gxh4
- Tries
- 1.Bc3+?
- 1...Kxc4
- 2.Qc6#
- 1...Kxc3!
- 1...Kxc4
- 1.Bc6?
- threat
- 2.Qe4#
- 1...Kxc4
- 2.Qd5#
- 1...Ke5!
- threat
- 1.Rxg5?
- threat
- 2.Qxf4#
- 1...Kxc4
- 2.Qd5#
- 1...Rxh4!
- threat
- 1.Qxd3+?
- 1...Ke5
- 2.Bc3#
- 1...Kxd3!
- 1...Ke5
- 1.hxg5?
- threat
- 2.Qxf4#
- 1...Ke5
- 2.Qd5#
- 1...Kxc4!
- threat
- 1.Bc3+?
- Keys
- 1.Bxd2!
- threat
- 2.Qd5#
- 1...Kxc4
- 2.Qe4#
- 1...Ke5
- 2.Qxf4#
- threat
- 1.Bxd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- P(e);N_GUARD,XP(D)::QAR2(A),XP(d)
- P(e);N_GUARD::QAR2(A),XP(d)
- Tries
- Try
- B(B);CHECK
- Vars
- K(c);P-FLIGHT,XP(C)::QAR2(A)
- Refutation
- K(c);P_SPINP(b),S_FLIGHT,XB(B)
- Try
- B(K);
- Threat
- QAR1(A)
- Vars
- K(c);P-FLIGHT,XP(C)::QAB1(A)
- Refutation
- K(c);P_SPINP(e),S_FLIGHT
- Try
- R(F);XP(e)
- Threat
- QAR2(A),XP(d)
- Vars
- K(c);P-FLIGHT,XP(C)::QAB1(A)
- Refutation
- R(g);XP(D)
- Try
- Q(A);CHECK,XP(b)
- Vars
- K(c);P_SPINP(e),S_FLIGHT::B(B)
- Refutation
- K(c);P-FLIGHT,XQ(A)
- Try
- P(D);XP(e)
- Threat
- QAR2(A),XP(d)
- Vars
- K(c);S_FLIGHT::QAR1(A)
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- Actual
- B(B);XP(a)
- Threat
- QAR1(A)
- Vars
- K(c);P-FLIGHT,XP(C)::QAR2(A)
- K(c);P_SPINP(e),S_FLIGHT::QAB1(A),XP(d)
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).