MESON Chess Problem Database
Problem Display
PID: 241106 (8/5p2/2p2Q2/Rb1k2p1/6Pp/1p2Pp1K/1N3N2/8 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Shakhmaty (Riga), 1975
#2
7 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Qd4#
- 1...c5
- 2.e4#
- 1...Kc5
- Tries
- 1.Kh2?
- 1...Kc5
- 2.Qd4#
- 1...c5
- 2.e4#
- 1...h3!
- 1...Kc5
- 1.Sa4?
- 1...Kc4
- 2.Qd4#
- 1...c5
- 2.Sb6#
- 1...b2!
- 1...Kc4
- 1.Sfd1?
- 1...Ke4
- 2.Qd4#
- 2.Qf5#
- 1...Kc5
- 2.Qd4#
- 1...c5
- 2.Sc3#
- 1...f2!
- 1...Ke4
- 1.Sfd3?
- threat
- 2.Qe5#
- 1...Ke4
- 2.Qd4#
- 2.Qe5#
- 1...c5!
- threat
- 1.Rxb5+?
- 1...c5
- 2.e4#
- 1...cxb5!
- 1...c5
- 1.Qxc6+?
- 1...Ke5
- 2.Sbd3#
- 2.Sc4#
- 2.Sfd3#
- 2.Rxb5#
- 1...Kxc6!
- 1...Ke5
- 1.Kh2?
- Keys
- 1.Se4!
- threat
- 2.Qf5#
- 1...Kxe4
- 2.Qd4#
- 1...c5
- 2.Sc3#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(e);P-FLIGHT::QAB1(G)
- P(g);N_SPINB(d),SBLOCK::P(C)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- K(e);P-FLIGHT::QAB1(G)
- P(g);N_SPINB(d),SBLOCK::P(C)
- Refutation
- P(c);
- Try
- S(A);
- Vars
- K(e);N_SPINB(d),S_FLIGHT::QAR1(G)
- P(g);N_SPINB(d),SBLOCK::S(A)
- Refutation
- P(a);
- Try
- S(B);
- Vars
- K(e);P-FLIGHT::QAB1(G)
- P(g);N_SPINB(d),SBLOCK::S(B)
- Refutation
- P(b);
- Try
- S(B);
- Threat
- QAR1(G)
- Refutation
- P(g);N_SPINB(d)
- Try
- R(F);CHECK,XB(d)
- Vars
- P(g);P_SPINP(g)::P(C)
- Refutation
- P(g);XR(F)
- Try
- Q(G);CHECK,XP(g)
- Refutation
- K(e);N_SPINB(d),S_FLIGHT,XQ(G)
- Try
- Actual
- S(B);
- Threat
- QAR2(G)
- Vars
- K(e);N_SPINB(d),S_FLIGHT,XS(B)::QAR1(G)
- P(g);N_SPINB(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).