MESON Chess Problem Database
Problem Display
PID: 263283 (1B5b/QPR5/2N1ppR1/1rr1N2n/1Pp2k2/5P1B/p3nPP1/K7 w - - 0 1)
Erokhin, Vladimir Alekseevich
Szachy, 1983
#2
13 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Qe3#
- 1...Rxc6
- 2.Qe3#
- 1...c3
- 2.Sd3#
- 1...Rd5
- Tries
- 1.Bxe6?
- threat
- 2.Rg4#
- 1...Rxc6
- 2.Qe3#
- 1...f5!
- threat
- 1.Rcg7?
- threat
- 2.Sd3#
- 1...Rxe5
- 2.Qe3#
- 1...fxe5!
- threat
- 1.Qxc5?
- threat
- 2.Qe3#
- 1...Sd4
- 2.Qxd4#
- 1...Rxc5!
- threat
- 1.Qa3?
- threat
- 2.Qe3#
- 1...Sc3
- 2.Qc1#
- 1...c3
- 2.Sd3#
- 1...Rxe5!
- threat
- 1.Bxe6?
- Keys
- 1.Rf7!
- threat
- 2.Sd3#
- 1...Rxe5
- 2.Qe3#
- 1...f5
- 2.Rg4#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(f);OGATE::QAB1(J)
- R(f);OGATE,XS(H)::QAB1(J)
- P(c);N_GUARD::S(G)
- Tries
- Try
- B(E);XP(h)
- Threat
- R1(I)
- Vars
- R(f);OGATE,XS(H)::QAB1(J)
- Refutation
- P(i);P_PINS(G)
- Try
- R(L);
- Threat
- B(M)+S(G),DCHECK
- Vars
- R(f);OGATE,P_SPINR(f),XS(G)::QAB1(J)
- Refutation
- P(i);P_SPINP(i),XS(G)
- Try
- Q(J);XR(f)
- Threat
- QAB1(J)
- Vars
- S(b);N_GUARD::QAR2(J),XS(b)
- Refutation
- R(e);XQ(J)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- S(b);N_GUARD::QAB(J)
- P(c);N_GUARD::S(G)
- Refutation
- R(f);XS(G)
- Try
- Actual
- R(L);P_PINP(i)
- Threat
- B(M)+S(G),DCHECK
- Vars
- R(f);OGATE,P_SPINR(f),XS(G)::QAB1(J)
- P(i);P_PINS(G)::R1(I)
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).