MESON Chess Problem Database
Problem Display
PID: 261629 (8/3RK1p1/2P2N2/r3k3/n3BR1N/4Pp1b/2PPp3/b4qrn w - - 0 1)
Lobusov, Andrey Jakovlevic
Schweizerische Schachzeitung, 1976
#2
10 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sxf3#
- 1...Qc1
- 2.Sxf3#
- 1...Qd1
- 2.Sxf3#
- 1...Qe1
- 2.Sxf3#
- 1...Rg4
- 2.Rf5#
- 1...Rg6
- 2.Sxg6#
- 1...Rd5
- 2.Rxd5#
- 1...Ra6
- 2.Rd5#
- 1...Ra8
- 2.Rd5#
- 1...Bg2
- 2.Sg6#
- 2.Sg4#
- 2.Rf5#
- 1...Bg4
- 2.Sg6#
- 1...Bf5
- 2.Rxf5#
- 1...Bxd7
- 2.Sxd7#
- 1...Sf2
- 2.Sxf3#
- 1...Sg3
- 2.Sg6#
- 1...Sb2
- 2.d4#
- 1...Sc3
- 2.d4#
- 1...Sc5
- 2.Rd5#
- 1...f2
- 2.Sf3#
- 1...g5
- 2.Sg6#
- 1...Qb1
- Tries
- 1.Sg4+?
- 1...Bxg4
- 2.Sg6#
- 1...Rxg4!
- 1...Bxg4
- 1.Bd3?
- threat
- 2.Re4#
- 1...Rg4
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sf2
- 2.Sxf3#
- 1...Sg3
- 2.Sg6#
- 1...Sc5
- 2.Rd5#
- 1...Sc3!
- threat
- 1.Bxf3?
- threat
- 2.Re4#
- 1...Qxf3
- 2.Sxf3#
- 1...Rg4
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sg3
- 2.Sg6#
- 1...Sc3
- 2.d4#
- 1...Sc5
- 2.Rd5#
- 1...Sf2!
- threat
- 1.Bd5?
- threat
- 2.Re4#
- 1...Rg4
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sf2
- 2.Sxf3#
- 1...Sg3
- 2.Sg6#
- 1...Sc3
- 2.d4#
- 1...Sc5!
- threat
- 1.Bf5?
- threat
- 2.Re4#
- 1...Bxf5
- 2.Rxf5#
- 1...Sf2
- 2.Sxf3#
- 1...Sg3
- 2.Sg6#
- 1...Sc3
- 2.d4#
- 1...Sc5
- 2.Rd5#
- 1...Rg4!
- threat
- 1.Bg6?
- threat
- 2.Re4#
- 1...Rg4
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sf2
- 2.Sxf3#
- 1...Sc3
- 2.d4#
- 1...Sc5
- 2.Rd5#
- 1...Sg3!
- threat
- 1.Rg4?
- threat
- 2.Sg6#
- 1...g6
- 2.Sxg6#
- 1...Rxg4!
- threat
- 1.c3?
- threat
- 2.d4#
- 1...Qd1
- 2.Sxf3#
- 1...Rd5
- 2.Rxd5#
- 1...Bxc3!
- threat
- 1.Sg4+?
- Keys
- 1.Bh7!
- threat
- 2.Re4#
- 1...Rg4
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sf2
- 2.Sxf3#
- 1...Sg3
- 2.Sg6#
- 1...Sc3
- 2.d4#
- 1...Sc5
- 2.Rd5#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(b);N_GUARD::S(F),XP(f)
- R(c);S_CUTB(g)::R1(E)
- R(c);N_GUARD::S(F),XR(c)
- R(i);N_GUARD::R1(I),XR(i)
- R(i);N_GUARD::R1(I)
- B(g);S_CUTR(c)::S(F)
- B(g);N_GUARD::R1(E),XB(g)
- B(g);XR(I)::S(H),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTB(a)::P(B)
- S(h);S_CUTR(i)::R1(I)
- P(f);S_CUTQ(b)::S(F)
- P(k);S_CUTR(c)::S(F)
- Tries
- Try
- S(H);CHECK
- Vars
- B(g);XS(H)::S(F)
- Refutation
- R(c);XS(H)
- Try
- B(D);
- Threat
- R1(E)
- Vars
- R(c);S_CUTB(g)::R1(E)
- B(g);N_GUARD::R1(E),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTR(i)::R1(I)
- Refutation
- S(h);
- Try
- B(D);XP(f)
- Threat
- R1(E)
- Vars
- Q(b);XB(D)::S(F),XQ(b)
- R(c);S_CUTB(g)::R1(E)
- B(g);N_GUARD::R1(E),XB(g)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTB(a)::P(B)
- S(h);S_CUTR(i)::R1(I)
- Refutation
- S(d);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- R(c);S_CUTB(g)::R1(E)
- B(g);N_GUARD::R1(E),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTB(a)::P(B)
- Refutation
- S(h);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- B(g);OGATE,XB(D)::R1(E),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTB(a)::P(B)
- S(h);S_CUTR(i)::R1(I)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- R(c);S_CUTB(g)::R1(E)
- B(g);N_GUARD::R1(E),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(h);S_CUTB(a)::P(B)
- S(h);S_CUTR(i)::R1(I)
- Refutation
- S(d);
- Try
- R(E);
- Threat
- S(F)
- Vars
- P(k);::S(F),XP(k)
- Refutation
- R(c);XR(E)
- Try
- P(A);
- Threat
- P(B)
- Vars
- Q(b);N_GUARD::S(F),XP(f)
- R(i);N_GUARD::R1(I),XR(i)
- Refutation
- B(a);XP(A)
- Try
- Actual
- B(D);
- Threat
- R1(E)
- Vars
- R(c);S_CUTB(g)::R1(E)
- B(g);N_GUARD::R1(E),XB(g)
- S(d);S_CUTQ(b)::S(F),XP(f)
- S(d);S_CUTR(c)::S(F)
- S(h);S_CUTB(a)::P(B)
- S(h);S_CUTR(i)::R1(I)
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).