MESON Chess Problem Database
Problem Display
PID: 103908 (b4b1B/1r6/p1B3p1/4R1n1/RNNk4/1Pp5/K1p1P3/1nr3q1 w - - 0 1)
Lukyanov, Valentin Volodimirovich
Azerbajdzanska Sut, 1980
#2
9 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.e3#
- 1...Qd1
- 2.e3#
- 1...Qf1
- 2.e3#
- 1...Qh1
- 2.e3#
- 1...Qg2
- 2.e3#
- 1...Qg4
- 2.e3#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rf1
- 2.Sxc2#
- 1...Bc5
- 2.Re4#
- 2.Re7#
- 1...Se4
- 2.Rd5#
- 1...Qh2
- Tries
- 1.Sb6?
- threat
- 2.Sxc2#
- 1...Bxb4
- 2.Rxb4#
- 1...Bg7
- 2.Sd3#
- 1...Rg7!
- threat
- 1.Sd6?
- threat
- 2.Sxc2#
- 1...Rxb4
- 2.Rxb4#
- 1...Rg7
- 2.Sd3#
- 1...Bg7!
- threat
- 1.Bh1?
- threat
- 2.Sc6#
- 2.Rd5#
- 1...Qxh1
- 2.e3#
- 1...Rxb4
- 2.Rd5#
- 1...Bxb4
- 2.Rd5#
- 1...Qg2
- 2.e3#
- 1...Rb5
- 2.Rd5#
- 1...Rb6
- 2.Rd5#
- 1...Ra7
- 2.Rd5#
- 1...Rc7
- 2.Rd5#
- 1...Rd7
- 2.Rd5#
- 1...Re7
- 2.Rd5#
- 1...Rf7
- 2.Rd5#
- 1...Rh7
- 2.Rd5#
- 1...Rb8
- 2.Rd5#
- 1...Sf3
- 2.Sc6#
- 1...Rg7!
- threat
- 1.Bg2?
- threat
- 2.Sc6#
- 2.Rd5#
- 1...Qxg2
- 2.e3#
- 1...Rxb4
- 2.Rd5#
- 1...Bxb4
- 2.Rd5#
- 1...Rb5
- 2.Rd5#
- 1...Rb6
- 2.Rd5#
- 1...Ra7
- 2.Rd5#
- 1...Rc7
- 2.Rd5#
- 1...Rd7
- 2.Rd5#
- 1...Re7
- 2.Rd5#
- 1...Rf7
- 2.Rd5#
- 1...Rh7
- 2.Rd5#
- 1...Rb8
- 2.Rd5#
- 1...Sf3
- 2.Sc6#
- 1...Rg7!
- threat
- 1.Bf3?
- threat
- 2.Sc6#
- 2.Rd5#
- 1...Rxb4
- 2.Rd5#
- 1...Bxb4
- 2.Rd5#
- 1...Sxf3
- 2.Sc6#
- 1...Rb5
- 2.Rd5#
- 1...Rb6
- 2.Rd5#
- 1...Ra7
- 2.Rd5#
- 1...Rc7
- 2.Rd5#
- 1...Rd7
- 2.Rd5#
- 1...Re7
- 2.Rd5#
- 1...Rf7
- 2.Rd5#
- 1...Rh7
- 2.Rd5#
- 1...Rb8
- 2.Rd5#
- 1...Rg7!
- threat
- 1.Bxb7?
- threat
- 2.Sc6#
- 1...Bxb4
- 2.Rea5#
- 2.Rb5#
- 2.Rf5#
- 2.Rxg5#
- 1...Qh1
- 2.e3#
- 1...Qg2
- 2.e3#
- 1...Bxb7!
- threat
- 1.Raa5?
- threat
- 2.Rad5#
- 2.Re4#
- 1...Rg7
- 2.Rad5#
- 1...Qh1
- 2.Re4#
- 2.e3#
- 1...Qg2
- 2.Re4#
- 2.e3#
- 1...Rd7
- 2.Re4#
- 1...Bc5
- 2.Re4#
- 2.Re7#
- 1...Bg7
- 2.Rad5#
- 1...Se4
- 2.Rad5#
- 2.Rxe4#
- 2.Red5#
- 1...Rb5!
- threat
- 1.Sb6?
- Keys
- 1.Sd3!
- threat
- 2.Re4#
- 1...Rg7
- 2.Sd6#
- 1...Bg7
- 2.Sb6#
- 1...Se4
- 2.Rxe4#
- 2.Rd5#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(c);N_GUARD::P(B)
- R(b);N_GUARD::S(E),XP(d)
- S(g);SBLOCK::B(I)+R(G),DCHECK
- Tries
- Try
- S(F);
- Threat
- R(D)+S(E),DCHECK,XP(d)
- Vars
- B(l);OGATE,P_SPINB(l),XS(E)::R(D),XB(l)
- B(l);N_GUARD::R(D)+S(E)
- Refutation
- R(j);
- Try
- S(F);
- Threat
- R(D)+S(E),DCHECK,XP(d)
- Vars
- R(j);OGATE,P_SPINR(j),XS(E)::R(D),XR(j)
- R(j);N_GUARD::R(D)+S(E)
- Refutation
- B(l);
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XB(H)::P(B)
- R(j);XS(E)::B(I)+R(G),DCHECK
- B(l);XS(E)::B(I)+R(G),DCHECK
- Q(c);N_GUARD::P(B)
- R(j);::B(I)+R(G),DCHECK
- S(g);::S(E)
- Refutation
- R(j);
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XB(H)::P(B)
- R(j);XS(E)::B(I)+R(G),DCHECK
- B(l);XS(E)::B(I)+R(G),DCHECK
- R(j);::B(I)+R(G),DCHECK
- S(g);::S(E)
- Refutation
- R(j);
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- R(j);XS(E)::B(I)+R(G),DCHECK
- B(l);XS(E)::B(I)+R(G),DCHECK
- S(g);XB(H)::S(E)
- R(j);::B(I)+R(G),DCHECK
- Refutation
- R(j);
- Try
- B(H);XR(j)
- Threat
- S(E)
- Vars
- Q(c);N_GUARD::P(B)
- Refutation
- B(k);XB(H)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(j);::R1(D)
- R(j);::B(I)+R(G),DCHECK
- B(l);::R1(D)
- Refutation
- R(j);
- Try
- Actual
- S(E);
- Threat
- B(I)+R(G),DCHECK
- Vars
- R(j);N_GUARD::R(D)+S(F)
- B(l);N_GUARD::R(D)+S(F)
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).