MESON Chess Problem Database
Problem Display
PID: 245884 (4B3/1p6/1Pp1k3/Rp1N1p2/2N5/2B5/8/K6Q w - - 0 1)
Erokhin, Vladimir Alekseevich
Shakhmatna misl, 1975
#2
8 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...bxc4
- 2.Qh6#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...f4
- 2.Qe4#
- 1...cxd5
- 2.Qe1#
- 1...bxc4
- Tries
- 1.Kb1?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Ka2?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Kb2?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Bb2?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Bb4?
- 1...bxc4
- 2.Qe1#
- 1...cxd5
- 2.Qh6#
- 1...f4
- 2.Qe4#
- 1...c5!
- 1...bxc4
- 1.Bd4?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Bg7?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Bh8?
- 1...bxc4
- 2.Qh6#
- 1...cxd5
- 2.Qe1#
- 1...f4
- 2.Qe4#
- 1...b4
- 2.Qe1#
- 2.Qh6#
- 1...c5!
- 1...bxc4
- 1.Ra2?
- threat
- 2.Re2#
- 1...f4
- 2.Qe4#
- 1...bxc4!
- threat
- 1.Qh5?
- threat
- 2.Qf7#
- 1...bxc4
- 2.Qg6#
- 2.Qh6#
- 1...Kxd5!
- threat
- 1.Qh7?
- threat
- 2.Sf4#
- 2.Sc7#
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...bxc4
- 2.Qg6#
- 2.Qh6#
- 2.Qd7#
- 2.Qe7#
- 1...cxd5
- 2.Bd7#
- 2.Qd7#
- 2.Qf7#
- 1...f4
- 2.Sxf4#
- 2.Sc7#
- 2.Qe4#
- 2.Qd7#
- 2.Qf7#
- 1...Kxd5!
- threat
- 1.Qh8?
- threat
- 2.Qe5#
- 2.Qg8#
- 1...bxc4
- 2.Qe5#
- 2.Qf6#
- 2.Qh6#
- 1...cxd5
- 2.Qe5#
- 2.Qf6#
- 1...f4
- 2.Qe5#
- 1...Kxd5!
- threat
- 1.Kb1?
- Keys
- 1.Qg2!
- threat
- 2.Qg8#
- 1...bxc4
- 2.Qg6#
- 1...cxd5
- 2.Qe2#
- 1...f4
- 2.Qe4#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- P(a);XS(D)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- K(A);P-FLIGHT
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- K(A);S_FLIGHT
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(a);XS(D)::QAR(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(c);
- Try
- R(E);
- Threat
- R(E)
- Vars
- P(b);N_GUARD::QAR2(B)
- Refutation
- P(a);XS(D)
- Try
- Q(B);
- Threat
- QAB1(B)
- Refutation
- K(d);P_SPINP(a),S_FLIGHT,XS(F)
- Try
- Q(B);
- Threat
- DUALS(5)
- Refutation
- K(d);P_SPINP(a),S_FLIGHT,XS(F)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(B)
- Refutation
- K(d);P_SPINP(a),S_FLIGHT,XS(F)
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- P(a);XS(D)::QAR2(B)
- P(c);SBLOCK,XS(F)::QAR(B)
- P(b);N_GUARD::QAR2(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).