MESON Chess Problem Database
Problem Display
PID: 150821 (B2rqr2/2Nn1n1p/R5p1/1pppN3/4k1P1/6P1/2PPK3/5RB1 w - - 0 1)
Alaikov, Venelin
Phenix, 2000
#2
11 + 11
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qxe5
- 2.d3#
- 1...Sdxe5
- 2.Rf4#
- 1...Sfxe5
- 2.Bxd5#
- 1...Qxe5
- Tries
- 1.Sd3?
- threat
- 2.Bxd5#
- 2.Rf4#
- 1...Rxa8
- 2.Rf4#
- 1...Qe6
- 2.Rf4#
- 1...Sde5
- 2.Sxc5#
- 2.Rf4#
- 1...Sb6
- 2.Rf4#
- 1...Sf6
- 2.Rf4#
- 1...Sb8
- 2.Rf4#
- 1...Sfe5
- 2.Bxd5#
- 1...Sg5
- 2.Bxd5#
- 1...Sd6
- 2.Bxd5#
- 1...Sh6
- 2.Bxd5#
- 1...Sh8
- 2.Bxd5#
- 1...g5
- 2.Bxd5#
- 1...Qe5!
- threat
- 1.Sf3?
- threat
- 2.Bxd5#
- 2.d3#
- 1...Rxa8
- 2.d3#
- 1...Qe5
- 2.d3#
- 1...Qe6
- 2.d3#
- 1...Sb6
- 2.d3#
- 1...Sf6
- 2.d3#
- 1...Sb8
- 2.d3#
- 1...Sfe5
- 2.Sg5#
- 2.Bxd5#
- 1...c4
- 2.Bxd5#
- 1...Sde5!
- threat
- 1.Sc4?
- threat
- 2.Bxd5#
- 2.Rf4#
- 2.d3#
- 1...Rxa8
- 2.Rf4#
- 2.d3#
- 1...Qe5
- 2.d3#
- 1...Qe6
- 2.Rf4#
- 2.d3#
- 1...Sde5
- 2.Rf4#
- 1...Sb6
- 2.Rf4#
- 2.d3#
- 1...Sf6
- 2.Rf4#
- 2.d3#
- 1...Sb8
- 2.Rf4#
- 2.d3#
- 1...Sfe5
- 2.Sd6#
- 2.Bxd5#
- 1...Sg5
- 2.Bxd5#
- 2.d3#
- 1...Sd6
- 2.Bxd5#
- 2.d3#
- 1...Sh6
- 2.Bxd5#
- 2.d3#
- 1...Sh8
- 2.Bxd5#
- 2.d3#
- 1...g5
- 2.Bxd5#
- 2.d3#
- 1...bxc4!
- threat
- 1.Sc6?
- threat
- 2.Rf4#
- 2.d3#
- 1...Qe5
- 2.d3#
- 1...Sde5
- 2.Rf4#
- 1...Sg5
- 2.d3#
- 1...Sd6
- 2.d3#
- 1...Sh6
- 2.d3#
- 1...Sh8
- 2.d3#
- 1...c4
- 2.Rf4#
- 1...g5
- 2.d3#
- 1...Sfe5!
- threat
- 1.Sxg6?
- threat
- 2.Bxd5#
- 2.Rf4#
- 2.d3#
- 1...Rxa8
- 2.Rf4#
- 2.d3#
- 1...Qe5
- 2.d3#
- 1...Qe6
- 2.Rf4#
- 2.d3#
- 1...Sde5
- 2.Rf4#
- 1...Sb6
- 2.Rf4#
- 2.d3#
- 1...Sf6
- 2.Rf4#
- 2.d3#
- 1...Sb8
- 2.Rf4#
- 2.d3#
- 1...Sfe5
- 2.Bxd5#
- 1...Sg5
- 2.Bxd5#
- 2.d3#
- 1...Sd6
- 2.Bxd5#
- 2.d3#
- 1...Sh6
- 2.Bxd5#
- 2.d3#
- 1...Sh8
- 2.Bxd5#
- 2.d3#
- 1...c4
- 2.Bxd5#
- 2.Rf4#
- 1...hxg6!
- threat
- 1.Re1?
- threat
- 2.Kd1#
- 2.Kf1#
- 1...Kxe5
- 2.Kd1#
- 2.Kf1#
- 2.Kd3#
- 2.Kf3#
- 1...Qxe5
- 2.d3#
- 1...Sfxe5
- 2.Bxd5#
- 1...Sg5
- 2.Kd1#
- 1...Sd6
- 2.Kd1#
- 1...Sh6
- 2.Kd1#
- 1...Sh8
- 2.Kd1#
- 1...Sdxe5!
- threat
- 1.Rf5?
- threat
- 2.Bxd5#
- 2.d3#
- 1...Qxe5
- 2.d3#
- 1...Rxa8
- 2.d3#
- 1...Sdxe5
- 2.Rf4#
- 1...Sfxe5
- 2.Bxd5#
- 1...Qe6
- 2.d3#
- 1...Sb6
- 2.d3#
- 1...Sf6
- 2.d3#
- 1...Sb8
- 2.d3#
- 1...c4
- 2.Bxd5#
- 1...gxf5!
- threat
- 1.Re6?
- threat
- 2.Bxd5#
- 2.Rf4#
- 2.d3#
- 1...Rxa8
- 2.Rf4#
- 2.d3#
- 1...Sdxe5
- 2.Rf4#
- 2.d3#
- 1...Sfxe5
- 2.Bxd5#
- 2.d3#
- 1...Sb6
- 2.Rf4#
- 2.d3#
- 1...Sf6
- 2.Rf4#
- 2.d3#
- 1...Sb8
- 2.Rf4#
- 2.d3#
- 1...Sg5
- 2.Bxd5#
- 2.d3#
- 1...Sd6
- 2.Bxd5#
- 2.d3#
- 1...Sh6
- 2.Bxd5#
- 2.d3#
- 1...Sh8
- 2.Bxd5#
- 2.d3#
- 1...c4
- 2.Bxd5#
- 2.Rf4#
- 1...g5
- 2.Bxd5#
- 2.d3#
- 1...Qxe6!
- threat
- 1.Sd3?
- Keys
- 1.Kd1!
- threat
- 2.Re1#
- 1...Kxe5
- 2.Re1#
- 1...Qxe5
- 2.d3#
- 1...Sdxe5
- 2.Rf4#
- 1...Sfxe5
- 2.Bxd5#
- threat
- 1.Kd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(j);SBLOCK,XS(H)::P(D)
- S(f);SBLOCK,XS(H)::R1(A)
- S(g);SBLOCK,XS(H)::B(K),XP(d)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(i);N_SPINP(d),XB(K)::R1(A)
- Q(j);::R1(A)
- S(f);::R1(A)
- S(g);::B(K),XP(d)
- P(e);::B(K),XP(d)
- Refutation
- Q(j);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(i);N_SPINP(d),XB(K)::P(D)
- Q(j);::P(D)
- S(f);::P(D)
- P(c);::B(K),XP(d)
- Refutation
- S(f);
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- Q(j);::P(D)
- S(f);::R1(A)
- Refutation
- P(b);XS(H)
- Try
- S(H);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- Q(j);::P(D)
- S(f);::R1(A)
- S(g);::P(D)
- P(c);::R1(A)
- P(e);::P(D)
- Refutation
- S(g);
- Try
- S(H);XP(e)
- Threat
- DUALS(3)
- Vars
- Q(j);::P(D)
- S(f);::R1(A)
- S(g);::B(K),XP(d)
- Refutation
- P(h);XS(H)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(j);SBLOCK,XS(H)::P(D)
- S(g);SBLOCK,XS(H)::B(K),XP(d)
- S(g);::R(A)+K(E)
- Refutation
- S(f);XS(H)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(j);XS(H)::P(D)
- R(i);N_SPINP(d),XB(K)::P(D)
- S(f);SBLOCK,XS(H)::R1(A)
- S(g);XS(H)::B(K),XP(d)
- Q(j);::P(D)
- S(f);::P(D)
- P(c);::B(K),XP(d)
- Refutation
- P(e);XR(A)
- Try
- R(I);
- Threat
- DUALS(3)
- Refutation
- Q(j);XR(I)
- Try
- Actual
- K(E);S_FLIGHT
- Threat
- R(A)
- Vars
- K(a);N_SPINP(d),P-FLIGHT,XS(H)::R(A)
- Q(j);SBLOCK,XS(H)::P(D)
- S(f);SBLOCK,XS(H)::R1(A)
- S(g);SBLOCK,XS(H)::B(K),XP(d)
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).