MESON Chess Problem Database
Problem Display
PID: 271675 (3n4/4pNpK/1pp5/5k1N/2Q2B2/2b1pPr1/B1b5/5Rq1 w - - 0 1)
Sushkov, Yuri Akimovich
3rd HM., Buletin Problemistic, 1984
#2
8 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Bxb1#
- 1...Bd1
- 2.Qd3#
- 2.Qe4#
- 1...Bb3
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Ba1
- 2.Qxc2#
- 1...Be1
- 2.Qxc2#
- 1...Bb2
- 2.Qxc2#
- 1...Bd2
- 2.Qxc2#
- 1...Bb4
- 2.Qxc2#
- 1...Bd4
- 2.Qxc2#
- 1...Ba5
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Bf6
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...Sxf7
- 2.Qe6#
- 1...e5
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...g5
- 2.Sh6#
- 1...g6
- 2.Sh6#
- 1...Bb1
- Tries
- 1.Sxd8?
- threat
- 2.Qe6#
- 1...Bb3
- 2.Qd3#
- 2.Qe4#
- 1...e6
- 2.Qxe6#
- 1...Rg6!
- threat
- 1.Bxg3?
- threat
- 2.Qf4#
- 2.Qg4#
- 1...Bb3
- 2.Qe4#
- 2.Qg4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 2.Qg4#
- 1...Se6
- 2.Qxe6#
- 2.Qg4#
- 1...e5
- 2.Qg4#
- 1...g5
- 2.Sh6#
- 2.Qg4#
- 1...Qxg3!
- threat
- 1.Be5?
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...Bxe5
- 2.Qxc2#
- 1...Rg4
- 2.fxg4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Sg7#
- 1...Bb3!
- threat
- 1.Bd6?
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...Rg4
- 2.fxg4#
- 1...Bb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Sh6#
- 1...e5!
- threat
- 1.Bh6?
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...Rg4
- 2.fxg4#
- 1...Bb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...e5
- 2.Sd6#
- 1...g5!
- threat
- 1.Bc7?
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...g5
- 2.Sh6#
- 1...Rg4
- 2.fxg4#
- 1...Bb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Bb8?
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...g5
- 2.Sh6#
- 1...Rg4
- 2.fxg4#
- 1...Bb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Qd5+?
- 1...Be5
- 2.Qxe5#
- 1...e5
- 2.Sd6#
- 1...cxd5!
- 1...Be5
- 1.Qxc3?
- threat
- 2.Qe5#
- 2.Qxc2#
- 1...Qxf1
- 2.Qe5#
- 1...Sxf7
- 2.Qxc2#
- 1...Bb3
- 2.Qe5#
- 1...e5
- 2.Sd6#
- 2.Qxe5#
- 1...Qf2
- 2.Qe5#
- 1...Qh2
- 2.Qe5#
- 1...Qg2
- 2.Qe5#
- 1...Rg2
- 2.Qe5#
- 1...Bb1
- 2.Qe5#
- 1...Bd1
- 2.Qe5#
- 2.Qd3#
- 1...Bd3
- 2.Qe5#
- 2.Qxd3#
- 1...Ba4
- 2.Qe5#
- 2.Qd3#
- 1...Be4
- 2.Qe5#
- 1...Rxf3!
- threat
- 1.Qc5+?
- 1...Be5
- 2.Qxc2#
- 2.Qxe5#
- 1...e5
- 2.Sd6#
- 1...bxc5!
- 1...Be5
- 1.Sxd8?
- Keys
- 1.Bg5!
- threat
- 2.Qf4#
- 1...Rxf3
- 2.Rxf3#
- 1...Rg4
- 2.fxg4#
- 1...Bb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.Qxc2#
- 1...Be5
- 2.Qxc2#
- 1...Se6
- 2.Qxe6#
- 1...e5
- 2.Sxg7#
- threat
- 1.Bg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- B(b);OGATEB::B(B),XB(b)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB(D),XB(b)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- S(k);N_GUARD::QAB1(D)
- S(k);N_GUARD,XS(G)::QAB1(D)
- P(i);N_GUARD::S(G)
- P(j);N_GUARD::S(G)
- Tries
- Try
- S(G);XS(k)
- Threat
- QAB1(D)
- Vars
- P(i);::QAB1(D),XP(i)
- Refutation
- R(e);
- Try
- B(E);XR(e)
- Threat
- DUALS(2)
- Vars
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- P(i);::QAB1(D)
- Refutation
- Q(a);XB(E)
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- B(c);OGATE,XB(E)::QAB(D),XB(b)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- P(j);S_CUTR(e)::S(F)
- Refutation
- B(b);
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- P(j);N_GUARD,SBLOCK::S(G)
- Refutation
- P(i);
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- P(i);N_GUARD,SBLOCK::S(G)
- Refutation
- P(j);
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- P(j);N_GUARD,SBLOCK::S(G)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- Refutation
- P(i);
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- P(j);N_GUARD,SBLOCK::S(G)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- Refutation
- P(i);
- Try
- Q(D);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR1(D),XB(c)
- P(i);P_SPINP(i)::S(G)
- Refutation
- P(h);XQ(D)
- Try
- Q(D);XB(c)
- Threat
- DUALS(2)
- Vars
- Q(a);XR(A)::QAR1(D)
- S(k);XS(G)::QAB(D),XB(b)
- B(b);::QAR1(D)
- Q(a);::QAR1(D)
- Q(a);P_PINS(F)::QAR1(D)
- R(e);::QAR1(D)
- Refutation
- R(e);XP(C)
- Try
- Q(D);CHECK
- Vars
- P(i);P_SPINP(i)::S(G)
- Refutation
- P(g);XQ(D)
- Try
- Actual
- B(E);
- Threat
- QAR1(D)
- Vars
- R(e);OGATE,P_SPINR(e),XP(C)::R(A),XR(e)
- R(e);OGATE::R(A)+P(C)DCHECK,XR(e)
- B(b);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- B(c);OGATE::QAB(D),XB(b)
- S(k);N_GUARD::QAB1(D),XS(k)
- P(i);S_CUTB(c)::S(F),XP(j)
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).