MESON Chess Problem Database
Problem Display
PID: 180424 (8/4pQ2/4N1K1/1N3p2/n2Bk3/1P2n3/4B3/8 w - - 0 1)
Lider, Valentin Viktorovich
Bulletin of the Central Chess Club of USSR, 1973
#2
7 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Bf3#
- 1...Sd1
- 2.Qxf5#
- 1...Sf1
- 2.Qxf5#
- 1...Sc2
- 2.Qxf5#
- 1...Sg2
- 2.Qxf5#
- 1...Sc4
- 2.Qxf5#
- 1...Sg4
- 2.Qxf5#
- 1...Sd5
- 2.Qxf5#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...f4
- 2.Sg5#
- 1...Kd5
- Tries
- 1.Kg5?
- 1...Kd5
- 2.Bf3#
- 1...Sd1
- 2.Qxf5#
- 1...Sf1
- 2.Qxf5#
- 1...Sc2
- 2.Qxf5#
- 1...Sg2
- 2.Qxf5#
- 1...Sc4
- 2.Qxf5#
- 1...Sg4
- 2.Qxf5#
- 1...Sd5
- 2.Qxf5#
- 1...Sb2
- 2.Sc3#
- 2.Sc5#
- 1...Sc3
- 2.Sxc3#
- 2.Sc5#
- 1...Sc5
- 2.Sc3#
- 2.Sxc5#
- 1...Sb6
- 2.Sc3#
- 2.Sc5#
- 1...f4!
- 1...Kd5
- 1.Qg8?
- 1...Kd5
- 2.Bf3#
- 1...Sb2
- 2.Sc3#
- 1...Sd1
- 2.Qa8#
- 1...Sf1
- 2.Qa8#
- 1...Sc2
- 2.Qa8#
- 1...Sg2
- 2.Qa8#
- 1...Sc4
- 2.Qa8#
- 1...Sg4
- 2.Qa8#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...f4
- 2.Sg5#
- 1...Sd5!
- 1...Kd5
- 1.Qf6?
- threat
- 2.Qe5#
- 1...Kd5
- 2.Bf3#
- 1...Sc4
- 2.Qxf5#
- 1...Sg4
- 2.Qxf5#
- 1...exf6!
- threat
- 1.bxa4?
- threat
- 2.Sc3#
- 1...Sd1
- 2.Qxf5#
- 1...Sd5
- 2.Qxf5#
- 1...Kd5!
- threat
- 1.b4?
- 1...Sb2
- 2.Sc3#
- 1...Sd1
- 2.Qxf5#
- 1...Sf1
- 2.Qxf5#
- 1...Sc2
- 2.Qxf5#
- 1...Sg2
- 2.Qxf5#
- 1...Sc4
- 2.Qxf5#
- 1...Sg4
- 2.Qxf5#
- 1...Sd5
- 2.Qxf5#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...f4
- 2.Sg5#
- 1...Kd5!
- 1...Sb2
- 1.Kg5?
- Keys
- 1.Qxe7!
- 1...Kd5
- 2.Bf3#
- 1...Sb2
- 2.Sc3#
- 1...Sd1
- 2.Qb7#
- 1...Sf1
- 2.Qb7#
- 1...Sc2
- 2.Qb7#
- 1...Sg2
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sg4
- 2.Qb7#
- 1...Sd5
- 2.Sd6#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...f4
- 2.Sec7#
- 1...Kd5
- 1.Qxe7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(c);S_FLIGHT::B(A)
- S(a);N_GUARD::QAB1(G),XP(d)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- P(d);::S(E)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- K(c);S_FLIGHT::B(A)
- S(a);N_GUARD::QAB1(G),XP(d)
- Refutation
- P(d);
- Try
- Q(G);
- Vars
- K(c);S_FLIGHT::B(A)
- S(b);N_GUARD::S(D)
- S(a);N_GUARD::QAB(G)
- S(b);N_GUARD::S(D),XS(b)
- P(d);SBLOCK::S(E)
- Refutation
- S(a);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- K(c);S_FLIGHT::B(A)
- S(a);N_GUARD::QAB1(G),XP(d)
- Refutation
- P(e);XQ(G)
- Try
- P(B);XS(b)
- Threat
- S(D)
- Vars
- S(a);N_GUARD::QAB1(G),XP(d)
- Refutation
- K(c);S_FLIGHT
- Try
- P(B);
- Vars
- S(b);N_GUARD::S(D)
- S(a);N_GUARD::QAB1(G),XP(d)
- S(b);N_GUARD::S(D),XS(b)
- P(d);::S(E)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- Q(G);XP(e)
- Vars
- K(c);S_FLIGHT::B(A)
- S(b);N_GUARD::S(D)
- S(a);N_GUARD::QAB(G)
- S(a);SBLOCK::S(D)
- S(b);N_GUARD::S(D),XS(b)
- P(d);SBLOCK::QAR(G)+S(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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