MESON Chess Problem Database
Problem Display
PID: 227488 (8/8/8/4B3/4n3/4K3/4B3/4k3 w - - 0 1)
de Jong, Leonard Nicholaas
Tijdschrift vd NSB, 1926
#2
3 + 2
| 3713 | Snap | 2020 |
| 6490 | yacpdb | 2020 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Bg3#
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 2.Bg3#
- 1...Sg3
- 2.Bc3#
- 2.Bxg3#
- 1...Sc5
- 2.Bc3#
- 2.Bg3#
- 1...Sg5
- 2.Bc3#
- 2.Bg3#
- 1...Sd6
- 2.Bc3#
- 2.Bg3#
- 1...Sf6
- 2.Bc3#
- 2.Bg3#
- 1...Sd2
- Tries
- 1.Ba1?
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Bc3#
- 1...Sd6
- 2.Bc3#
- 1...Sf6
- 2.Bc3#
- 1...Sd2!
- 1...Sf2
- 1.Bb2?
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Bc3#
- 1...Sd6
- 2.Bc3#
- 1...Sf6
- 2.Bc3#
- 1...Sd2!
- 1...Sf2
- 1.Bh2?
- 1...Sd2
- 2.Bg3#
- 1...Sc3
- 2.Bg3#
- 1...Sg3
- 2.Bxg3#
- 1...Sc5
- 2.Bg3#
- 1...Sg5
- 2.Bg3#
- 1...Sd6
- 2.Bg3#
- 1...Sf6
- 2.Bg3#
- 1...Sf2!
- 1...Sd2
- 1.Bc3+?
- 1...Sd2
- 2.Bxd2#
- 1...Sxc3!
- 1...Sd2
- 1.Bg3+?
- 1...Sf2
- 2.Bxf2#
- 1...Sxg3!
- 1...Sf2
- 1.Bd4?
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Bc3#
- 1...Sd6
- 2.Bc3#
- 1...Sf6
- 2.Bc3#
- 1...Sd2!
- 1...Sf2
- 1.Bf4?
- 1...Sd2
- 2.Bg3#
- 1...Sc3
- 2.Bg3#
- 1...Sg3
- 2.Bxg3#
- 1...Sc5
- 2.Bg3#
- 1...Sg5
- 2.Bg3#
- 1...Sd6
- 2.Bg3#
- 1...Sf6
- 2.Bg3#
- 1...Sf2!
- 1...Sd2
- 1.Bd6?
- 1...Sd2
- 2.Bg3#
- 1...Sf2
- 2.Bb4#
- 1...Sc3
- 2.Bg3#
- 1...Sg3
- 2.Bxg3#
- 2.Bb4#
- 1...Sc5
- 2.Bg3#
- 1...Sg5
- 2.Bg3#
- 2.Bb4#
- 1...Sf6
- 2.Bg3#
- 2.Bb4#
- 1...Sxd6!
- 1...Sd2
- 1.Bf6?
- 1...Sd2
- 2.Bh4#
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 2.Bh4#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 2.Bh4#
- 1...Sg5
- 2.Bc3#
- 1...Sd6
- 2.Bc3#
- 2.Bh4#
- 1...Sxf6!
- 1...Sd2
- 1.Ba1?
- Keys
- 1.Bc7!
- 1...Sd2
- 2.Bg3#
- 1...Sf2
- 2.Ba5#
- 1...Sc3
- 2.Bg3#
- 1...Sg3
- 2.Bxg3#
- 2.Ba5#
- 1...Sc5
- 2.Bg3#
- 2.Ba5#
- 1...Sg5
- 2.Bg3#
- 2.Ba5#
- 1...Sd6
- 2.Ba5#
- 1...Sf6
- 2.Bg3#
- 2.Ba5#
- 1...Sd2
- 1.Bc7!
Anticipated by 17225(1925)
This anticipates 231658(1927), 117797(1969)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::B(C)
- Tries
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- S(b);
- Try
- B(C);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(C),XS(b)
- Refutation
- S(b);XB(C)
- Try
- B(C);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(C),XS(b)
- Refutation
- S(b);XB(C)
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- Refutation
- S(b);XB(C)
- Try
- B(C);
- Vars
- S(b);N_GUARD::B(C)
- Refutation
- S(b);XB(C)
- Try
- Actual
- B(C);
- Vars
- S(b);N_GUARD::B(C)
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).