MESON Chess Problem Database
Problem Display
PID: 121295 (8/2K1p1N1/4P3/2p1k3/8/1QPPpRP1/5r2/8 w - - 0 1)
Jewetzky, Orest
Shakhmatny Zhurnal, 1909
#2
8 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Rf5#
- 1...Rb2
- 2.Rf5#
- 1...Rc2
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Re2
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rh2
- 2.Rf5#
- 1...c4
- 2.Qb5#
- 1...Ra2
- Tries
- 1.Kc6?
- threat
- 2.Qd5#
- 2.Qb8#
- 1...Rb2
- 2.Rf5#
- 2.Qd5#
- 1...c4
- 2.Qb5#
- 2.Qb8#
- 1...Rxf3!
- threat
- 1.Qa4?
- threat
- 2.Qe4#
- 1...Kd5
- 2.Qe4#
- 1...c4
- 2.Qb5#
- 2.Qa5#
- 1...Rxf3!
- threat
- 1.Kc6?
- Keys
- 1.Qb2!
- 1...Kd5
- 2.c4#
- 1...Rxb2
- 2.Rf5#
- 1...Rxf3
- 2.c4#
- 1...Rf1
- 2.c4#
- 1...Rc2
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Re2
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rh2
- 2.Rf5#
- 1...e2
- 2.c4#
- 1...c4
- 2.Qb5#
- 1...Kd5
- 1.Qb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::R1(D)
- P(c);OGATEB::QAR(A)
- Tries
- Try
- K(G);P-FLIGHT
- Threat
- DUALS(2)
- Refutation
- R(a);XR(D)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- K(d);P-FLIGHT::QAB1(A)
- Refutation
- R(a);XR(D)
- Try
- Actual
- Q(A);
- Vars
- K(d);P-FLIGHT::P(B)
- R(a);N_GUARD,XQ(A)::R1(D)
- R(a);N_GUARD,XR(D)::QAB(A)+P(B)
- R(a);N_GUARD::QAB(A)+P(B)
- R(a);N_GUARD::R1(D)
- P(b);S_CUTR(a)::QAB(A)+P(B)
- P(c);OGATEB::QAR(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).