MESON Chess Problem Database
Problem Display
PID: 87785 (kbK4Q/p7/8/8/8/1P6/7p/8 w - - 0 1)
Shakhnazaryan, Albert Serapionovic
Problemist Pribuzhya, 1990
#2
3 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bc7
- 2.Kxc7#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bc7
- Tries
- 1.Qe5?
- threat
- 2.Qxb8#
- 2.Qe4#
- 2.Qd5#
- 1...a5
- 2.Qxb8#
- 1...a6
- 2.Qxb8#
- 1...h1Q
- 2.Qxb8#
- 1...h1B
- 2.Qxb8#
- 1...Bd6
- 2.Qe4#
- 2.Qd5#
- 1...Bc7
- 2.Qe4#
- 2.Qd5#
- 1...Bxe5!
- threat
- 1.Qxh2?
- threat
- 2.Qxb8#
- 2.Qh1#
- 2.Qg2#
- 1...a5
- 2.Qxb8#
- 1...a6
- 2.Qxb8#
- 1...Bg3
- 2.Qh1#
- 2.Qg2#
- 1...Bf4
- 2.Qh1#
- 2.Qg2#
- 1...Be5
- 2.Qh1#
- 2.Qg2#
- 1...Bd6
- 2.Qh1#
- 2.Qg2#
- 1...Bc7
- 2.Qh1#
- 2.Qg2#
- 1...Bxh2!
- threat
- 1.Qe5?
- Keys
- 1.Qh7!
- threat
- 2.Qe4#
- 2.Qb7#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...Bc7
- 2.Qe4#
- 1...a5
- 2.Qb7#
- 1...a6
- 2.Qb7#
- threat
- 1.Qh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(d);::QAR(C)+K(B),XB(d)
- P(a);OGATE::QAB(C),XQ(a)
- P(a);OGATE::QAB(C),XS(a)
- P(a);OGATE::QAB(C),XB(a)
- P(a);OGATE::QAB(C),XR(a)
- Tries
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(C),XB(d)
- P(a);::QAR1(C),XB(d)
- Refutation
- B(d);XQ(C)
- Try
- Q(C);XP(a)
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(C),XB(d)
- Refutation
- B(d);XQ(C)
- Try
- Actual
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(a);OGATE::QAB(C),XQ(a)
- P(a);OGATE::QAB(C),XB(a)
- B(d);::QAB(C)
- P(b);::QAB1(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).