MESON Chess Problem Database
Problem Display
PID: 262712 (8/4N3/8/2p3n1/R1B2NkP/5RBp/3p4/3K1Q2 w - - 0 1)
Rudenko, Valentin Fedorovich
4th HM., Shakhmatna misl, 1958
#2
9 + 5
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...Sxf3
- Tries
- 1.Sed5?
- threat
- 2.Se3#
- 1...Sxf3
- 2.Qxh3#
- 1...Kf5!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 2.Sh6#
- 1...Sxf3
- 2.Qxh3#
- 1...Sf7
- 2.Se3#
- 1...Kxf5!
- threat
- 1.Sg8?
- threat
- 2.Sh6#
- 1...Sxf3
- 2.Qxh3#
- 1...Sf7
- 2.Be6#
- 1...Kf5!
- threat
- 1.Bh2?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Qxh3#
- 1...Se6
- 2.Qxh3#
- 1...Sf7
- 2.Qxh3#
- 1...Sh7
- 2.Qxh3#
- 1...Kxh4!
- 1...Sxf3
- 1.Bd3?
- threat
- 2.Bf5#
- 1...Sxf3
- 2.Qxh3#
- 1...Se4!
- threat
- 1.Bf7?
- threat
- 2.Bh5#
- 1...Sxf3
- 2.Qxh3#
- 1...Sxf7!
- threat
- 1.Rfa3?
- 1...Sf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Se6
- 2.Be2#
- 2.Bxe6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sf7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sh7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...h2!
- 1...Sf3
- 1.Rb3?
- 1...Sf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Se6
- 2.Be2#
- 2.Bxe6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sf7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sh7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...h2!
- 1...Sf3
- 1.Rc3?
- 1...Sf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Se6
- 2.Be2#
- 2.Bxe6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sf7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sh7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...h2!
- 1...Sf3
- 1.Rd3?
- 1...Sf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Se6
- 2.Bxe6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sf7
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sh7
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...h2!
- 1...Sf3
- 1.Re3?
- 1...Sf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Se6
- 2.Be2#
- 2.Bxe6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sf7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...Sh7
- 2.Be2#
- 2.Be6#
- 2.Qe2#
- 2.Qxh3#
- 2.Qf3#
- 1...h2!
- 1...Sf3
- 1.Ra1?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Ra2?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Raa3?
- 1...Sxf3
- 2.Qxh3#
- 2.Qxf3#
- 1...Se4
- 2.Be6#
- 2.Qxh3#
- 1...Se6
- 2.Bxe6#
- 2.Qxh3#
- 1...Sf7
- 2.Be6#
- 2.Qxh3#
- 1...Sh7
- 2.Be6#
- 2.Qxh3#
- 1...h2!
- 1...Sxf3
- 1.Ra5?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Ra6?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Ra7?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Ra8?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Qg2?
- 1...Sxf3
- 2.Be6#
- 2.Qxh3#
- 1...h2
- 2.Be1#
- 2.Bf2#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...hxg2!
- 1...Sxf3
- 1.Qh1?
- 1...Sxf3
- 2.Qxh3#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Qf2?
- 1...Sxf3
- 2.Be6#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...Sh7
- 2.Be6#
- 1...h2!
- 1...Sxf3
- 1.Sed5?
- Keys
- 1.Bf2!
- 1...Kxf3
- 2.Be2#
- 1...Sxf3
- 2.Be6#
- 1...h2
- 2.Qg2#
- 1...Se4
- 2.Qxh3#
- 1...Se6
- 2.Qxh3#
- 1...Sf7
- 2.Qxh3#
- 1...Sh7
- 2.Qxh3#
- 1...Kxf3
- 1.Bf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Tries
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- Refutation
- K(c);S_FLIGHT
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);::S(I)
- Refutation
- K(c);S_FLIGHT,XS(I)
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- Refutation
- K(c);S_FLIGHT
- Try
- B(D);
- Vars
- S(e);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);P-FLIGHT,XP(H)
- Try
- B(F);
- Threat
- B(F)
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- Refutation
- S(e);
- Try
- B(F);
- Threat
- B(F)
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- Refutation
- S(e);XB(F)
- Try
- R(C);
- Refutation
- P(b);
- Try
- R(C);
- Refutation
- P(b);
- Try
- R(C);
- Refutation
- P(b);
- Try
- R(C);
- Refutation
- P(b);
- Try
- R(C);
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- R(E);
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- Q(B);
- Vars
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);
- Vars
- S(e);N_GUARD,SBLOCK,XR(C)::QAB1(B),XP(b)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- Q(B);
- Vars
- S(e);N_GUARD,XR(C)::B(F)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- Refutation
- P(b);
- Try
- Actual
- B(D);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(C)::B(F)
- S(e);N_GUARD,SBLOCK,XR(C)::B(F)
- P(b);N_GUARD::QAR2(B)
- S(e);N_GUARD::QAB1(B),XP(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).