MESON Chess Problem Database
Problem Display
PID: 42060 (3n2B1/q7/p2P1N1R/3p1kpp/1Qn5/2Bp3N/K3R3/8 w - - 0 1)
Lobusov, Andrey Jakovlevic
1st Prize, Shakhmaty (Riga), 1985
#2
9 + 9
| 3748 | FIDE Album (1983-1985) | 1992 |
| 133 | The Problemist Supplement | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Bh7#
- 1...Qf2
- 2.Bh7#
- 2.Rxf2#
- 1...Qd4
- 2.Bh7#
- 1...Qc5
- 2.Bh7#
- 1...Qb6
- 2.Bh7#
- 1...Qb8
- 2.Bh7#
- 2.Rf2#
- 1...Qb7
- 2.Rf2#
- 1...Qc7
- 2.Rf2#
- 1...Qd7
- 2.Rf2#
- 1...Qe7
- 2.Rf2#
- 1...Qg7
- 2.Rf2#
- 1...Qh7
- 2.Bxh7#
- 2.Rf2#
- 1...Qa8
- 2.Bh7#
- 2.Rf2#
- 1...Sb2
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sa3
- 2.Re5#
- 1...Se3
- 2.Rf2#
- 1...Sa5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sb6
- 2.Rf2#
- 2.Re5#
- 1...Sxd6
- 2.Re5#
- 1...Sc6
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb7
- 2.Be6#
- 2.Bh7#
- 1...Sf7
- 2.Bh7#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Qg1
- Tries
- 1.Bd4?
- threat
- 2.Rf2#
- 1...Qxd4
- 2.Bh7#
- 1...dxe2
- 2.Qb1#
- 1...Sd2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Bh7#
- 1...Qf7!
- threat
- 1.Qc5?
- threat
- 2.Rf2#
- 1...Qxc5
- 2.Bh7#
- 1...Qf7
- 2.Qf2#
- 1...Sd2
- 2.Re5#
- 2.Qxd5#
- 1...Se5
- 2.Rxe5#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Bh7#
- 1...dxe2!
- threat
- 1.Qb1?
- threat
- 2.Qxd3#
- 1...Sxd6
- 2.Re5#
- 1...Qd4
- 2.Bh7#
- 1...Qe7
- 2.Rf2#
- 2.Qf1#
- 1...Sb2
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Qe3!
- threat
- 1.Qxc4?
- threat
- 2.Re5#
- 2.Qxd3#
- 2.Qxd5#
- 1...dxe2
- 2.Qd3#
- 2.Qxd5#
- 1...dxc4
- 2.Re5#
- 1...Qf2
- 2.Bh7#
- 2.Rxf2#
- 2.Qxd3#
- 2.Qxd5#
- 1...Qd4
- 2.Bh7#
- 1...Qc5
- 2.Bh7#
- 2.Re5#
- 2.Qxd3#
- 1...Qb7
- 2.Rf2#
- 2.Re5#
- 2.Qxd3#
- 1...Qe7
- 2.Rf2#
- 1...Qf7
- 2.Re5#
- 2.Qxd3#
- 1...Qa8
- 2.Bh7#
- 2.Rf2#
- 2.Re5#
- 2.Qxd3#
- 1...Sc6
- 2.Be6#
- 2.Qxd3#
- 1...Sf7
- 2.Bh7#
- 2.Qxd3#
- 1...d2
- 2.Re5#
- 2.Qd3#
- 2.Qxd5#
- 1...d4
- 2.Qxd3#
- 2.Qd5#
- 1...Qe3!
- threat
- 1.Qb6?
- threat
- 2.Rf2#
- 1...Qxb6
- 2.Bh7#
- 1...dxe2
- 2.Qb1#
- 1...Qf7
- 2.Qf2#
- 1...Sd2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Bh7#
- 1...d4!
- threat
- 1.d7?
- threat
- 2.Bh7#
- 1...Qxd7
- 2.Rf2#
- 1...dxe2
- 2.Qb1#
- 1...Se3
- 2.Rf2#
- 1...Se5
- 2.Rxe5#
- 1...Qe3!
- threat
- 1.Bd4?
- Keys
- 1.Qb7!
- threat
- 2.Bh7#
- 1...Qxb7
- 2.Rf2#
- 1...dxe2
- 2.Qb1#
- 1...Qe3
- 2.Qh7#
- 1...Se3
- 2.Rf2#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 17
- Sets
- Q(h);N_GUARD::B(I)
- Q(h);N_GUARD::R(B)
- S(b);N_GUARD::R1(B)
- S(b);S_CUTQ(h)::R(B)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD,XP(F)::R1(B)
- S(i);N_GUARD::B(I)
- S(i);N_GUARD::B(I),XS(i)
- S(i);S_CUTQ(h)::B(I)
- P(a);OGATEB,XR(B)::QAB(E)
- P(a);OGATEB::QAB(E)
- Tries
- Try
- B(C);
- Threat
- R(B)
- Vars
- Q(h);N_GUARD,XB(C)::B(I)
- P(a);OGATEB,XR(B)::QAB(E)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- S(i);N_GUARD::B(I),XS(i)
- S(i);S_CUTQ(h)::B(I)
- Refutation
- Q(h);
- Try
- Q(E);P_PINP(c)
- Threat
- R(B)
- Vars
- Q(h);N_GUARD,N_SPINP(c),XQ(E)::B(I)
- Q(h);N_GUARD::QAR(E)
- S(b);N_GUARD,N_SPINP(c)::R1(B),XS(b)
- S(i);N_GUARD::B(I),XS(i)
- S(i);S_CUTQ(h)::B(I)
- Refutation
- P(a);XR(B)
- Try
- Q(E);P_PINP(a)
- Threat
- QAB(E),XP(a)
- Vars
- S(b);N_GUARD,XP(F)::R1(B)
- Q(h);N_GUARD::B(I)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- Refutation
- Q(h);
- Try
- Q(E);XS(b)
- Threat
- DUALS(3)
- Vars
- P(c);XQ(E)::R1(B)
- Q(h);N_GUARD::B(I)
- Q(h);N_GUARD::R(B)
- Refutation
- Q(h);
- Try
- Q(E);
- Threat
- R(B)
- Vars
- Q(h);N_GUARD,XQ(E)::B(I)
- P(a);OGATEB,XR(B)::QAB(E)
- Q(h);N_GUARD::QAR(E)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- S(i);N_GUARD::B(I),XS(i)
- S(i);S_CUTQ(h)::B(I)
- Refutation
- P(c);
- Try
- P(F);
- Threat
- B(I)
- Vars
- Q(h);N_GUARD,XP(F)::R(B)
- P(a);OGATEB,XR(B)::QAB(E)
- S(b);S_CUTQ(h)::R(B)
- S(b);N_GUARD::R1(B),XS(b)
- Refutation
- Q(h);
- Try
- Actual
- Q(E);
- Threat
- B(I)
- Vars
- Q(h);N_GUARD,XQ(E)::R(B)
- P(a);OGATEB,XR(B)::QAB(E)
- Q(h);N_GUARD::QAB(E)
- S(b);S_CUTQ(h)::R(B)
- S(b);N_GUARD::R1(B),XS(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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