MESON Chess Problem Database
Problem Display
PID: 92852 (6Qb/4N3/2p2knB/2P1pNp1/4KnB1/8/8/8 w - - 0 1)
Asplund, Per Ivan Rune
Tidskrift for Schack, 1953
#2
7 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg7
- 2.Bxg7#
- 1...Se2
- 2.Qxg6#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sh3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Sh5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 1...Sxe7
- 2.Bxg5#
- 1...Sf8
- 2.Bxg5#
- 1...Bg7
- Tries
- 1.Se3?
- 1...Sxe7
- 2.Bxg5#
- 1...Bg7
- 2.Qxg7#
- 1...Se2
- 2.Qe6#
- 1...Sg2
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sh4
- 2.Bxg5#
- 2.Qf8#
- 1...Sf8
- 2.Bxg5#
- 2.Qxf8#
- 1...Kxe7!
- 1...Sxe7
- 1.Sg3?
- 1...Sxe7
- 2.Bxg5#
- 1...Bg7
- 2.Qxg7#
- 1...Se2
- 2.Qe6#
- 1...Sg2
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sh4
- 2.Bxg5#
- 2.Qf8#
- 1...Sf8
- 2.Bxg5#
- 2.Qxf8#
- 1...Kxe7!
- 1...Sxe7
- 1.Bd1?
- 1...Sxe7
- 2.Bxg5#
- 1...Se2
- 2.Qxg6#
- 1...Bg7
- 2.Bxg7#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sh3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Sh5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 1...Sf8
- 2.Bxg5#
- 1...g4!
- 1...Sxe7
- 1.Be2?
- 1...Sxe2
- 2.Qxg6#
- 1...Sxe7
- 2.Bxg5#
- 1...Bg7
- 2.Bxg7#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sh3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Sh5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 1...Sf8
- 2.Bxg5#
- 1...g4!
- 1...Sxe2
- 1.Bf3?
- 1...Sxe7
- 2.Bxg5#
- 1...Se2
- 2.Qxg6#
- 1...Bg7
- 2.Bxg7#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sh3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Sh5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 1...Sf8
- 2.Bxg5#
- 1...g4!
- 1...Sxe7
- 1.Bh3?
- 1...Sxh3
- 2.Qxg6#
- 1...Sxe7
- 2.Bxg5#
- 1...Bg7
- 2.Bxg7#
- 1...Se2
- 2.Qxg6#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Sh5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 1...Sf8
- 2.Bxg5#
- 1...g4!
- 1...Sxh3
- 1.Bh5?
- 1...Sxh5
- 2.Qxg6#
- 1...Sxe7
- 2.Bxg5#
- 2.Qf7#
- 1...Bg7
- 2.Bxg7#
- 1...Se2
- 2.Qxg6#
- 1...Sg2
- 2.Qxg6#
- 1...Sd3
- 2.Qxg6#
- 1...Sh3
- 2.Qxg6#
- 1...Sd5
- 2.Qxg6#
- 1...Se6
- 2.Qxg6#
- 1...Sh4
- 2.Bxg5#
- 2.Qf7#
- 1...Sf8
- 2.Bxg5#
- 2.Qf7#
- 1...g4!
- 1...Sxh5
- 1.Qg7+?
- 1...Ke6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 1...Bxg7!
- 1...Ke6
- 1.Qf8+?
- 1...Ke6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sg7#
- 1...Sxf8!
- 1...Ke6
- 1.Se3?
- Keys
- 1.Sg7!
- 1...Kxe7
- 2.Bxg5#
- 1...Bxg7
- 2.Qxg7#
- 1...Sxe7
- 2.Se8#
- 1...Se2
- 2.Qe6#
- 1...Sg2
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sh4
- 2.Qf8#
- 1...Sf8
- 2.Qxf8#
- 1...Kxe7
- 1.Sg7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD::QAR1(G),XS(f)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- S(f);::B(E),XP(c)
- S(f);XS(F)::B(E),XP(c)
- Tries
- Try
- S(D);
- Vars
- S(f);SBLOCK,XS(F)::B(E),XP(c)
- B(g);N_GUARD::QAB1(G),XB(g)
- S(a);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- Refutation
- K(e);S_FLIGHT,XS(F)
- Try
- S(D);
- Vars
- S(f);SBLOCK,XS(F)::B(E),XP(c)
- B(g);N_GUARD::QAB1(G),XB(g)
- S(a);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- Refutation
- K(e);S_FLIGHT,XS(F)
- Try
- B(B);
- Vars
- S(f);XS(F)::B(E),XP(c)
- S(a);N_GUARD::QAR1(G),XS(f)
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- S(f);::B(E),XP(c)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XB(B)::QAR1(G),XS(f)
- S(f);XS(F)::B(E),XP(c)
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD::QAR1(G),XS(f)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- S(f);::B(E),XP(c)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- S(f);XS(F)::B(E),XP(c)
- S(a);N_GUARD::QAR1(G),XS(f)
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- S(f);::B(E),XP(c)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XB(B)::QAR1(G),XS(f)
- S(f);XS(F)::B(E),XP(c)
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD::QAR1(G),XS(f)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- S(f);::B(E),XP(c)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XB(B)::QAR1(G),XS(f)
- B(g);N_GUARD::B(E),XB(g)
- S(a);N_GUARD::QAR1(G),XS(f)
- S(a);N_GUARD,SBLOCK::QAR1(G),XS(f)
- Refutation
- P(c);
- Try
- Q(G);CHECK
- Refutation
- B(g);XQ(G)
- Try
- Q(G);CHECK
- Refutation
- S(f);XQ(G)
- Try
- Actual
- S(D);
- Vars
- K(e);S_FLIGHT,XS(F)::B(E),XP(c)
- B(g);OGATE,XS(D)::QAB1(G),XB(g)
- S(f);SBLOCK,XS(F)::S(D)
- S(a);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- S(f);N_GUARD::QAR2(G)
- S(f);N_GUARD::QAR2(G),XS(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).