MESON Chess Problem Database
Problem Display
PID: 179473 (1N6/4P1pr/4kBP1/r4R1P/b2Q1bq1/pN1B1Rn1/1n6/K7 w - - 0 1)
Davidenko, Fedor Vasilevich
1st HM., Shakhmaty v SSSR, 1978
#2
11 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Rc5
- 2.Sxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Sc5#
- 2.Qd5#
- 1...Ra7
- 2.Sc5#
- 2.Qd5#
- 1...Ra8
- 2.Sc5#
- 2.Qd5#
- 1...Bxb3
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bb5
- 2.Sc5#
- 2.Qd5#
- 1...Bd7
- 2.Qxd7#
- 1...gxf6
- 2.Qxf6#
- 1...Rb5
- Tries
- 1.Rb5?
- threat
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Qxf3
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Qxh5
- 2.e8Q#
- 2.e8R#
- 1...Rxb5
- 2.e8Q#
- 2.e8R#
- 1...Rxh5
- 2.e8Q#
- 2.e8R#
- 1...Bxb3
- 2.e8Q#
- 2.e8R#
- 1...Bxb5
- 2.Sc5#
- 1...Bxb8
- 2.Sc5#
- 2.Qd5#
- 2.e8Q#
- 2.e8R#
- 1...Sxd3
- 2.e8Q#
- 2.e8R#
- 1...Sxh5
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...gxf6
- 2.Qd7#
- 1...Qh3
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Qf5
- 2.e8Q#
- 2.e8R#
- 1...Qh4
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Qg5
- 2.e8Q#
- 2.e8R#
- 1...Ra6
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Ra7
- 2.Sc5#
- 1...Ra8
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Rh8
- 2.Sc5#
- 1...Bc1
- 2.Sc5#
- 2.Qe5#
- 2.Qb6#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bd2
- 2.Sc5#
- 2.Qe5#
- 2.Qb6#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Be3
- 2.Sc5#
- 2.Qe5#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Be5
- 2.Sc5#
- 2.Qxe5#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bg5
- 2.Sc5#
- 2.Qe5#
- 2.Qb6#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sc5#
- 2.Qe5#
- 2.Qb6#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bc7
- 2.Sc5#
- 2.Qd5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Sd1
- 2.Sc5#
- 2.Bc4#
- 2.e8Q#
- 2.e8R#
- 1...Sc4
- 2.Sc5#
- 2.Bxc4#
- 2.e8Q#
- 2.e8R#
- 1...Sf1
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Sh1
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Se2
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Se4
- 2.e8Q#
- 2.e8R#
- 1...Sf5
- 2.Sc5#
- 1...a2
- 2.Sc5#
- 2.e8Q#
- 2.e8R#
- 1...Qxg6!
- threat
- 1.Rb5?
- Keys
- 1.Bb5!
- threat
- 2.Qd5#
- 2.Qd7#
- 1...Kxf5
- 2.Qe5#
- 1...Qxf3
- 2.Qd7#
- 1...Qxf5
- 2.e8Q#
- 2.e8R#
- 1...Qxg6
- 2.Qd5#
- 1...Rxb5
- 2.Qd7#
- 1...Bxb3
- 2.Bd7#
- 2.Qd7#
- 1...Bxb5
- 2.Qd5#
- 1...Sxf5
- 2.Sc5#
- 1...gxf6
- 2.Qxf6#
- 2.Qd7#
- 1...Ra7
- 2.Qd5#
- 1...Be5
- 2.Sc5#
- 2.Rxe5#
- 2.Qxe5#
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Bd6
- 2.Qd5#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- R(g);N_GUARD::S(B),XR(g)
- R(g);N_GUARD::QAB1(E),XR(g)
- B(d);N_GUARD::QAB1(E),XB(d)
- P(i);OGATE,XB(H)::QAR1(E),XP(i)
- Tries
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- Q(f);XP(G)::P=Q
- R(g);XR(F)::P=Q
- R(j);XP(G)::P=Q
- B(d);XS(B)::P=Q
- B(d);XR(F)::S(B)
- S(a);XB(C)::P=Q
- P(i);SBLOCK,XB(H)::QAB1(E)
- Q(f);::P=Q
- R(g);::S(B)
- R(j);::S(B)
- B(e);::QAB1(E)
- S(c);::P=Q
- S(c);::S(B)
- Refutation
- Q(f);XP(I)
- Try
- Actual
- B(C);
- Threat
- DUALS(2)
- Vars
- K(h);P_SPINB(e),S_FLIGHT,XR(F)::QAR1(E)
- Q(f);XR(D)::QAB1(E)
- Q(f);SBLOCK,XR(F)::P=Q
- Q(f);XP(I)::QAB1(E)
- R(g);XB(C)::QAB1(E)
- B(d);XB(C)::QAB1(E)
- S(c);SBLOCK,XR(F)::S(B)
- R(g);::QAB1(E)
- B(e);::QAB1(E)
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).