MESON Chess Problem Database
Problem Display
PID: 202659 (N7/b7/2K2n2/2p5/ppk1p3/4Q3/1P6/2N5 w - - 0 1)
Kovacs, Florian Janos
Uj Nemezdek, 1923
#2
5 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 2.Qxc5#
- 1...Sg4
- 2.Qxe4#
- 1...Sd5
- 2.Qxe4#
- 1...Sh5
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Sh7
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...Sg8
- 2.Qxe4#
- 1...a3
- 2.b3#
- 1...b3
- 2.Qc3#
- 1...Bb6
- Tries
- 1.Sb3?
- threat
- 2.Sd2#
- 2.Sa5#
- 1...Bb6
- 2.Sd2#
- 2.Sxb6#
- 1...axb3!
- threat
- 1.Sc7?
- 1...b3
- 2.Qc3#
- 1...Sg4
- 2.Qxe4#
- 1...Bb8
- 2.Qxc5#
- 1...Sd5
- 2.Qxe4#
- 1...Sh5
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Sh7
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...Sg8
- 2.Qxe4#
- 1...a3
- 2.b3#
- 1...Bb6!
- 1...b3
- 1.Sb3?
- Keys
- 1.Qd2!
- 1...Sg4
- 2.Qd5#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sd5
- 2.Qxd5#
- 1...Sh5
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...a3
- 2.b3#
- 1...b3
- 2.Qc3#
- 1...e3
- 2.Qd3#
- 1...Sg4
- 1.Qd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::S(E),XB(g)
- S(f);N_GUARD::QAR2(C),XP(d)
- P(a);N_GUARD::P(B)
- P(b);N_GUARD::QAR1(C)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Refutation
- P(a);XS(A)
- Try
- S(E);
- Vars
- P(b);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR2(C),XP(d)
- B(g);N_GUARD::QAR1(C),XP(e)
- P(a);N_GUARD::P(B)
- Refutation
- B(g);
- Try
- Actual
- Q(C);
- Vars
- S(f);N_GUARD::QAB1(C)
- B(g);N_GUARD::S(E),XB(g)
- B(g);N_GUARD::S(E)
- S(f);N_GUARD::QAB1(C),XS(f)
- P(a);N_GUARD::P(B)
- P(b);N_GUARD::QAR1(C)
- P(d);N_GUARD::QAB1(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).