MESON Chess Problem Database
Problem Display
PID: 173529 (5n2/qpB1RK1B/5p2/1PpkN1b1/3pp3/1Pp3r1/N4Q2/3R3b w - - 0 1)
Alaikov, Venelin
2nd Comm., Uralski Problemist, 2006
#2
10 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sxc3#
- 1...Rg2
- 2.Sxc3#
- 1...Rg4
- 2.Sxc3#
- 1...Bf3
- 2.Sxc3#
- 1...Be3
- 2.Sxc3#
- 1...Se6
- 2.Rd7#
- 1...Sg6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...Sxh7
- 2.Rd7#
- 1...d3
- 2.Sxc3#
- 1...e3
- 2.Sxc3#
- 1...fxe5
- 2.Rxe5#
- 1...Rg1
- Tries
- 1.Sd3?
- threat
- 2.Qf5#
- 1...Rf3
- 2.Bxe4#
- 1...Bf4
- 2.Sxf4#
- 1...Sg6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Bf3!
- threat
- 1.Sf3?
- threat
- 2.Sxc3#
- 2.Bxe4#
- 1...Qxa2
- 2.Bxe4#
- 1...Rxf3
- 2.Bxe4#
- 1...Bxf3
- 2.Sxc3#
- 1...Sxh7
- 2.Sxc3#
- 2.Rd7#
- 1...exf3
- 2.Sxc3#
- 2.Be4#
- 1...Qa5
- 2.Bxe4#
- 1...Rg4
- 2.Sxc3#
- 1...Bd2
- 2.Bxe4#
- 1...Se6
- 2.Sxc3#
- 2.Rd7#
- 1...Sg6
- 2.Sxc3#
- 2.Rd7#
- 1...c2
- 2.Sc3#
- 2.Bxe4#
- 1...e3
- 2.Sxc3#
- 2.Be4#
- 1...f5
- 2.Sxc3#
- 2.Re5#
- 1...c4!
- threat
- 1.Sc4?
- threat
- 2.Qf5#
- 1...Rf3
- 2.Bxe4#
- 1...Bf3
- 2.Sxc3#
- 1...Sg6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...d3
- 2.Sxc3#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Bf4!
- threat
- 1.Sc6?
- threat
- 2.Qf5#
- 1...Rf3
- 2.Bxe4#
- 1...Bf3
- 2.Sxc3#
- 1...Sg6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Bf4!
- threat
- 1.Sg6?
- threat
- 2.Qf5#
- 1...Sxg6
- 2.Rd7#
- 1...Bf4
- 2.Sxf4#
- 1...Bf3
- 2.Sxc3#
- 1...Sd7
- 2.Rxd7#
- 1...d3
- 2.Sxc3#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Rf3!
- threat
- 1.Sd7?
- threat
- 2.Qf5#
- 1...Sxd7
- 2.Rxd7#
- 1...Bf4
- 2.Sxf6#
- 1...Rf3
- 2.Bxe4#
- 1...Bf3
- 2.Sxc3#
- 1...d3
- 2.Sxc3#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Sg6!
- threat
- 1.Qf5?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...fxe5
- 2.Rxe5#
- 2.Qxe5#
- 1...d3
- 2.Sf3#
- 2.Sc6#
- 1...c4
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Rd3
- 2.Sxd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Rf3
- 2.Sxf3#
- 2.Qxe4#
- 1...Rg4
- 2.Sxc3#
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Bf3
- 2.Sxc3#
- 2.Sd3#
- 2.Sxf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Sg6
- 2.Sxg6#
- 2.Rd7#
- 2.Qe6#
- 2.Qd7#
- 1...Sd7
- 2.Sxd7#
- 2.Rxd7#
- 2.Qe6#
- 2.Qxd7#
- 1...Bf4!
- threat
- 1.Sd3?
- Keys
- 1.Sg4!
- threat
- 2.Qf5#
- 1...Rf3
- 2.Bxe4#
- 1...Bf3
- 2.Sxc3#
- 1...Bf4
- 2.Sxf6#
- 1...Sg6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...d3
- 2.Sxc3#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(c);N_GUARD::S(B),XP(b)
- B(a);S_CUTR(c)::S(B),XP(b)
- B(h);S_CUTR(c)::S(B),XP(b)
- S(l);N_GUARD::R(H)
- S(l);N_GUARD::R(H),XS(l)
- S(l);N_GUARD,XB(J)::R(H)
- P(d);S_CUTR(c)::S(B),XP(b)
- P(e);S_CUTR(c)::S(B),XP(b)
- P(i);OGATE,XS(F)::R1(H),XP(i)
- Tries
- Try
- S(F);N_PINP(d)
- Threat
- QAR2(C)
- Vars
- R(c);S_CUTB(a)::B(J),XP(e)
- B(h);N_GUARD::S(F),XB(h)
- S(l);N_GUARD::R(H)
- S(l);N_GUARD::R(H),XS(l)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(j);XS(B)::B(J),XP(e)
- R(c);XS(F)::B(J),XP(e)
- B(a);XS(F)::S(B),XP(b)
- Q(j);::B(J),XP(e)
- R(c);::S(B),XP(b)
- B(h);N_SPINP(d)::B(J),XP(e)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- QAR2(C)
- Vars
- R(c);S_CUTB(a)::B(J),XP(e)
- B(a);S_CUTR(c)::S(B),XP(b)
- S(l);N_GUARD::R(H)
- S(l);N_GUARD::R(H),XS(l)
- P(d);S_CUTR(c)::S(B),XP(b)
- Refutation
- B(h);
- Try
- S(F);
- Threat
- QAR2(C)
- Vars
- R(c);S_CUTB(a)::B(J),XP(e)
- B(a);S_CUTR(c)::S(B),XP(b)
- S(l);N_GUARD::R(H)
- S(l);N_GUARD::R(H),XS(l)
- Refutation
- B(h);
- Try
- S(F);
- Threat
- QAR2(C)
- Vars
- S(l);N_GUARD,XS(F)::R(H)
- B(h);N_GUARD::S(F),XB(h)
- B(a);S_CUTR(c)::S(B),XP(b)
- S(l);N_GUARD::R(H),XS(l)
- P(d);S_CUTR(c)::S(B),XP(b)
- Refutation
- R(c);
- Try
- S(F);
- Threat
- QAR2(C)
- Vars
- S(l);OGATE,XS(F)::R(H),XS(l)
- B(h);N_GUARD::S(F),XP(i)
- R(c);S_CUTB(a)::B(J),XP(e)
- B(a);S_CUTR(c)::S(B),XP(b)
- P(d);S_CUTR(c)::S(B),XP(b)
- Refutation
- S(l);
- Try
- Q(C);
- Threat
- DUALS(7)
- Refutation
- B(h);
- Try
- Actual
- S(F);
- Threat
- QAR2(C)
- Vars
- R(c);S_CUTB(a)::B(J),XP(e)
- B(a);S_CUTR(c)::S(B),XP(b)
- B(h);N_GUARD::S(F),XP(i)
- S(l);N_GUARD::R(H)
- S(l);N_GUARD::R(H),XS(l)
- P(d);S_CUTR(c)::S(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).