MESON Chess Problem Database
Problem Display
PID: 241240 (3N1K2/7B/5k2/2p5/1p6/3n1N1n/2Q5/5b2 w - - 0 1)
Pilchenko, Viacheslav Karlovich
Shakhmaty (Riga), 1979
#2
5 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Qf5#
- 2.Qg6#
- 2.Qb2#
- 1...Se1
- 2.Qf5#
- 2.Qg6#
- 2.Qb2#
- 1...Sb2
- 2.Qf5#
- 2.Qg6#
- 2.Qxb2#
- 1...Sdf2
- 2.Qf5#
- 2.Qg6#
- 2.Qb2#
- 1...Sdf4
- 2.Qf5#
- 2.Qb2#
- 1...Se5
- 2.Qf5#
- 1...Sc1
- Tries
- 1.Qxd3?
- threat
- 2.Qf5#
- 2.Qg6#
- 2.Qd6#
- 1...Sf4
- 2.Qf5#
- 1...Sg5
- 2.Qf5#
- 2.Qg6#
- 1...Bxd3!
- threat
- 1.Qa2?
- threat
- 2.Qe6#
- 2.Qf7#
- 2.Qa6#
- 1...Sc1
- 2.Qe6#
- 2.Qf7#
- 2.Qa1#
- 2.Qb2#
- 1...Se1
- 2.Qe6#
- 2.Qf7#
- 2.Qa1#
- 2.Qb2#
- 1...Sb2
- 2.Qe6#
- 2.Qf7#
- 2.Qxb2#
- 1...Sdf2
- 2.Qe6#
- 2.Qf7#
- 2.Qa1#
- 2.Qb2#
- 1...Sdf4
- 2.Qf7#
- 2.Qa1#
- 2.Qb2#
- 1...Se5
- 2.Qe6#
- 1...Shf4
- 2.Qf7#
- 1...b3
- 2.Qa6#
- 1...c4
- 2.Qa6#
- 1...Sg5!
- threat
- 1.Qb2+?
- 1...Se5
- 2.Qxe5#
- 1...Sxb2!
- 1...Se5
- 1.Qd2?
- threat
- 2.Qh6#
- 1...Sdf4
- 2.Qb2#
- 1...Se5
- 2.Qd6#
- 1...Sg5
- 2.Qxg5#
- 1...Shf4!
- threat
- 1.Qe2?
- threat
- 2.Qe6#
- 2.Qe7#
- 1...Sdf4
- 2.Qb2#
- 2.Qe5#
- 2.Qe7#
- 1...Se5
- 2.Qxe5#
- 1...Shf4
- 2.Qe7#
- 1...Sg5
- 2.Qe7#
- 1...Bxe2!
- threat
- 1.Qg2?
- threat
- 2.Qg6#
- 2.Qg7#
- 1...Sdf4
- 2.Qb2#
- 2.Qg7#
- 1...Se5
- 2.Qg7#
- 1...Shf4
- 2.Qg5#
- 2.Qg7#
- 1...Sg5
- 2.Qxg5#
- 1...Bxg2!
- threat
- 1.Qc3+?
- 1...Se5
- 2.Qxe5#
- 1...bxc3!
- 1...Se5
- 1.Qc4?
- threat
- 2.Qa6#
- 2.Qe6#
- 2.Qf7#
- 1...Sc1
- 2.Qe6#
- 2.Qf7#
- 1...Se1
- 2.Qe6#
- 2.Qf7#
- 1...Sb2
- 2.Qe6#
- 2.Qf7#
- 1...Sdf2
- 2.Qe6#
- 2.Qf7#
- 1...Sdf4
- 2.Qf7#
- 1...Se5
- 2.Qe6#
- 1...Shf4
- 2.Qf7#
- 1...Sg5!
- threat
- 1.Qxc5?
- threat
- 2.Qb6#
- 2.Qd6#
- 2.Qe7#
- 2.Qf5#
- 2.Qc6#
- 1...Sdf4
- 2.Qd4#
- 2.Qe7#
- 2.Qe5#
- 2.Qf5#
- 1...Se5
- 2.Qd6#
- 2.Qe7#
- 2.Qxe5#
- 1...Shf4
- 2.Qe7#
- 2.Qf5#
- 2.Qg5#
- 1...Sg5
- 2.Qe7#
- 2.Qf5#
- 2.Qxg5#
- 1...Sxc5!
- threat
- 1.Qxd3?
- Keys
- 1.Qh2!
- threat
- 2.Qd6#
- 1...Sdf4
- 2.Qb2#
- 1...Se5
- 2.Qxe5#
- 1...Shf4
- 2.Qh4#
- 1...Sg5
- 2.Qh6#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(b);OGATE::QAR1(A)
- Tries
- Try
- Q(A);XS(b)
- Threat
- DUALS(3)
- Vars
- S(c);::QAR1(A)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(b);::QAR1(A)
- S(c);::QAR1(A)
- P(d);::QAR(A)
- P(e);::QAR(A)
- Refutation
- S(c);
- Try
- Q(A);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- S(b);N_GUARD::QAB(A)
- S(b);OGATE::QAR2(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::QAB1(A),XS(b)
- S(c);::QAB1(A)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(b);::QAB1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(b);::QAR1(A)
- S(c);::QAR1(A)
- Refutation
- S(c);
- Try
- Q(A);XP(e)
- Threat
- DUALS(5)
- Refutation
- S(b);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAR2(A)
- Vars
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB1(A),XS(b)
- S(c);OGATE::QAB(A)
- S(c);OGATE::QAR2(A)
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).