MESON Chess Problem Database
Problem Display
PID: 85646 (N1n3r1/1p3q1b/p2R2p1/Q2pR3/P1k5/2P3pr/2n3Bp/2N4K w - - 0 1)
Pavlov, Yury A
Shedey, Sergey Oleksandrovich
3rd Prize, Uralski Rabochi, 1974
#2
9 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe6
- 2.Bf1#
- 2.Qc7#
- 1...Qe8
- 2.Bf1#
- 2.Bxd5#
- 1...Qf1+
- 2.Bxf1#
- 1...Qf2
- 2.Bxd5#
- 1...Qf3
- 2.Qc7#
- 1...Qf4
- 2.Bxd5#
- 2.Qc7#
- 1...Qf5
- 2.Bxd5#
- 2.Qc7#
- 1...Qf6
- 2.Bxd5#
- 2.Qc7#
- 1...Qc7
- 2.Bf1#
- 2.Bxd5#
- 2.Qxc7#
- 1...Qd7
- 2.Bf1#
- 2.Bxd5#
- 1...Qe7
- 2.Bf1#
- 2.Bxd5#
- 1...Qg7
- 2.Bf1#
- 2.Bxd5#
- 1...Qf8
- 2.Bxd5#
- 2.Qc7#
- 1...Sa1
- 2.Qb4#
- 1...Se1
- 2.Qb4#
- 1...Sa3
- 2.Qb4#
- 1...Se3
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Sd4
- 2.Qb4#
- 1...Sb6
- 2.Sxb6#
- 1...Sxd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...d4
- 2.Rc5#
- 2.Qc5#
- 1...b5
- 2.Rc6#
- 1...b6
- 2.Rc6#
- 1...Qe6
- Tries
- 1.Rexd5?
- threat
- 2.Rc5#
- 2.Qc5#
- 1...Qf1+
- 2.Bxf1#
- 1...Qxd5
- 2.Bxd5#
- 1...Qf5
- 2.Qc7#
- 2.Qc5#
- 1...Qc7
- 2.Bf1#
- 2.Qxc7#
- 1...Rh5
- 2.Qc5#
- 1...b5
- 2.Rc6#
- 1...b6
- 2.Rc6#
- 1...Qf2!
- threat
- 1.Rf5?
- threat
- 2.Bf1#
- 1...Qxf5
- 2.Qc7#
- 1...Sb4
- 2.Qxb4#
- 1...b5
- 2.Rc6#
- 1...Qe6
- 2.Qc7#
- 1...Qe8
- 2.Bxd5#
- 1...Qe7
- 2.Bxd5#
- 1...Se1
- 2.Qb4#
- 1...Se3
- 2.Qb4#
- 1...Sd4
- 2.Qb4#
- 1...d4
- 2.Rc5#
- 2.Qc5#
- 1...Re8!
- threat
- 1.Ree6?
- threat
- 2.Bxd5#
- 1...Qf1+
- 2.Bxf1#
- 1...Qxe6
- 2.Qc7#
- 1...Sb4
- 2.Qxb4#
- 1...b5
- 2.Rc6#
- 1...Qf3
- 2.Qc7#
- 1...Qf5
- 2.Qc7#
- 1...Se3
- 2.Qb4#
- 1...Sb6
- 2.Sxb6#
- 1...Se7
- 2.Sb6#
- 1...d4
- 2.Bd5#
- 1...Rh5!
- threat
- 1.Rde6?
- threat
- 2.Bxd5#
- 1...Qf1+
- 2.Bxf1#
- 1...Qxe6
- 2.Bf1#
- 1...Sb4
- 2.Qxb4#
- 1...b5
- 2.Rc6#
- 1...Qf3
- 2.Qc7#
- 1...Qd7
- 2.Bf1#
- 1...Se3
- 2.Qb4#
- 1...Sb6
- 2.Sxb6#
- 1...Se7
- 2.Sb6#
- 1...d4
- 2.Bd5#
- 2.Rc5#
- 2.Qc5#
- 1...Rd8!
- threat
- 1.Rf6?
- threat
- 2.Bf1#
- 1...Qxf6
- 2.Bxd5#
- 1...Sb4
- 2.Qxb4#
- 1...b5
- 2.Rc6#
- 1...Se1
- 2.Qb4#
- 1...Se3
- 2.Qb4#
- 1...Sd4
- 2.Qb4#
- 1...d4
- 2.Rc5#
- 2.Qc5#
- 1...g5!
- threat
- 1.Rd7?
- threat
- 2.Qc7#
- 1...Qf1+
- 2.Bxf1#
- 1...Qxd7
- 2.Bf1#
- 1...Sb4
- 2.Qxb4#
- 1...Qe6
- 2.Bf1#
- 1...Qf2
- 2.Bxd5#
- 1...Qf6
- 2.Bxd5#
- 1...Qe7
- 2.Bf1#
- 2.Bxd5#
- 1...Qf8
- 2.Bxd5#
- 1...Sd4
- 2.Qb4#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...b6!
- threat
- 1.Qxa6+?
- 1...Kc5
- 2.Sb3#
- 2.Sd3#
- 1...bxa6
- 2.Rc6#
- 1...b5
- 2.Rc6#
- 2.Qc6#
- 1...Kxc3!
- 1...Kc5
- 1.Rexd5?
- Keys
- 1.Re7!
- threat
- 2.Qc7#
- 1...Qf1+
- 2.Bxf1#
- 1...Qxe7
- 2.Bxd5#
- 1...Sxe7
- 2.Sb6#
- 1...Sb4
- 2.Qxb4#
- 1...Qe8
- 2.Bf1#
- 2.Bxd5#
- 1...Qf2
- 2.Bxd5#
- 1...Sd4
- 2.Qb4#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...b6
- 2.Rc6#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);N_GUARD::B(C),XP(f)
- Q(j);N_GUARD,P_PINB(C)::QAR(F)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD,XR(H)::S(I)
- S(l);N_GUARD::S(I)
- P(i);N_GUARD::R(H)
- Tries
- Try
- R(G);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);OGATE,P_PINB(C),XR(G)::B(C),XQ(j)
- R(d);::QAR1(F)
- P(i);N_GUARD::R(H)
- Refutation
- Q(j);
- Try
- R(G);
- Threat
- B(C)
- Vars
- Q(j);N_GUARD,XR(G)::QAR(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(i);N_GUARD::R(H)
- Q(j);N_GUARD::QAR(F)
- Q(j);N_GUARD::B(C),XP(f)
- S(a);N_GUARD::QAR1(F)
- Refutation
- R(m);
- Try
- R(G);
- Threat
- B(C),XP(f)
- Vars
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);N_GUARD,XR(G)::QAR(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(i);N_GUARD::R(H)
- Q(j);N_GUARD,P_PINB(C)::QAR(F)
- Q(j);N_GUARD::QAR(F)
- S(a);N_GUARD::QAR1(F)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD::S(I)
- P(f);::B(C)
- Refutation
- R(d);
- Try
- R(H);
- Threat
- B(C),XP(f)
- Vars
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);N_GUARD,XR(H)::B(C)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(i);N_GUARD::R(H)
- Q(j);N_GUARD,P_PINB(C)::QAR(F)
- Q(j);N_GUARD::B(C)
- S(a);N_GUARD::QAR1(F)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD::S(I)
- Refutation
- R(m);
- Try
- R(H);
- Threat
- B(C)
- Vars
- Q(j);N_GUARD,XR(H)::B(C),XP(f)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(i);N_GUARD::R(H)
- S(a);N_GUARD::QAR1(F)
- Refutation
- P(h);
- Try
- R(H);
- Threat
- QAR(F)
- Vars
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);N_GUARD,XR(H)::B(C)
- S(a);N_GUARD::QAR1(F),XS(a)
- Q(j);N_GUARD::B(C)
- Q(j);N_GUARD::B(C),XP(f)
- S(a);N_GUARD::QAR1(F)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD::S(I)
- Refutation
- P(i);
- Try
- Q(F);CHECK,XP(g)
- Vars
- P(i);XQ(F)::R(H)
- Refutation
- K(e);P-FLIGHT,XP(D)
- Try
- Actual
- R(G);
- Threat
- QAR(F)
- Vars
- Q(j);CHECK,N_GUARD::B(C),XQ(j)
- Q(j);N_GUARD,XR(G)::B(C),XP(f)
- S(l);N_GUARD,XR(G)::S(I)
- S(a);N_GUARD::QAR1(F),XS(a)
- Q(j);N_GUARD::B(C),XP(f)
- S(a);N_GUARD::QAR1(F)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD::S(I)
- P(i);N_GUARD::R(H)
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).