MESON Chess Problem Database
Problem Display
PID: 169848 (4N2b/2p2K2/3pRP2/5kB1/5Ppp/3b4/2n3B1/5N2 w - - 0 1)
Stepanov, V
Shakhmaty v SSSR, 1945
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bxf1
- 2.Be4#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Bg7
- 2.Sxg7#
- 1...Sa1
- 2.Se3#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...g3
- 2.Bh3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...Bxf1
- Tries
- 1.Sxc7?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...g3
- 2.Bh3#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...Bg7!
- 1...Bxf1
- 1.Bh1?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...g3!
- 1...Bxf1
- 1.Bd5?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...g3!
- 1...Bxf1
- 1.Bc6?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...g3!
- 1...Bxf1
- 1.Bb7?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...g3!
- 1...Bxf1
- 1.Ba8?
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...g3!
- 1...Bxf1
- 1.Sxc7?
- Keys
- 1.Bh6!
- 1...Bxf1
- 2.Be4#
- 1...Bxf6
- 2.Rxf6#
- 1...g3
- 2.Bh3#
- 1...Sa1
- 2.Se3#
- 1...Be2
- 2.Be4#
- 1...Bc4
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bb5
- 2.Be4#
- 1...Ba6
- 2.Be4#
- 1...Bg7
- 2.Sxg7#
- 1...Se1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...h3
- 2.Sg3#
- 1...d5
- 2.Re5#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Sxd6#
- 1...Bxf1
- 1.Bh6!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD,XS(A)::B(B)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(c);OGATEB::B(B)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- P(g);N_GUARD::S(H),XP(f)
- Tries
- Try
- S(H);XP(g)
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- P(c);OGATEB::B(B)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- Refutation
- B(h);
- Try
- B(B);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- P(g);N_GUARD::S(H),XP(f)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(g);N_GUARD::S(H),XP(f)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- P(g);N_GUARD::S(H),XP(f)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- P(g);N_GUARD::S(H),XP(f)
- Refutation
- P(c);
- Try
- Actual
- B(D);
- Vars
- B(b);N_GUARD,XS(A)::B(B)
- B(h);OGATE,XP(F)::R1(E),XB(h)
- P(c);OGATEB::B(B)
- S(a);N_GUARD::S(A)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD,P_PINR(E)::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- P(f);N_GUARD::R1(E)
- P(g);N_GUARD::S(H),XP(f)
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).