MESON Chess Problem Database
Problem Display
PID: 202647 (2Q5/1pnN4/pNk1n3/K3B3/8/8/8/8 w - - 0 1)
Kovacs, Florian Janos
Nepszava, 1923
#2
5 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Sb8#
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sd4
- Tries
- 1.Kb4?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...a5+!
- 1...Sd4
- 1.Sc5?
- 1...Sxc5
- 2.Qxc7#
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Kxc5!
- 1...Sxc5
- 1.Sf6?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Kc5!
- 1...Sd4
- 1.Sf8?
- 1...Sxf8
- 2.Qxc7#
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Kc5!
- 1...Sxf8
- 1.Bh2?
- 1...Sd4
- 2.Qxc7#
- 1...Sc5
- 2.Sb8#
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sf4!
- 1...Sd4
- 1.Bg3?
- 1...Sd4
- 2.Qxc7#
- 1...Sc5
- 2.Sb8#
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sf4!
- 1...Sd4
- 1.Bf4?
- 1...Sd4
- 2.Qxc7#
- 1...Sc5
- 2.Sb8#
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sxf4!
- 1...Sd4
- 1.Bd6?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Kxd6!
- 1...Sd4
- 1.Bxc7?
- 1...Sd4
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sf4
- 2.Bxf4#
- 2.Be5#
- 2.Bb8#
- 1...Sc5
- 2.Se5#
- 2.Sb8#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sg5
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sg7
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sd8
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sf8
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bb8#
- 1...Sxc7!
- 1...Sd4
- 1.Qf8?
- threat
- 2.Sb8#
- 2.Qd6#
- 1...Sb5
- 2.Sb8#
- 2.Qf3#
- 1...Se8
- 2.Sb8#
- 2.Qf3#
- 1...Sxf8!
- threat
- 1.Kb4?
- Keys
- 1.Qg8!
- 1...Sd4
- 2.Qc4#
- 1...Sf4
- 2.Qc4#
- 1...Sc5
- 2.Sb8#
- 1...Sg5
- 2.Qc4#
- 1...Sg7
- 2.Qc4#
- 1...Sd8
- 2.Qc4#
- 1...Sf8
- 2.Qc4#
- 1...Sb5
- 2.Qg2#
- 1...Sd5
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 2.Qg2#
- 1...Se8
- 2.Qg2#
- 1...Sd4
- 1.Qg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAR1(E),XS(e)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- P(a);CHECK
- Try
- S(D);
- Vars
- S(c);N_GUARD,SBLOCK,XS(D)::QAR1(E),XS(e)
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- S(D);
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- S(c);N_GUARD,SBLOCK::QAR1(E),XS(e)
- Refutation
- K(b);P-FLIGHT
- Try
- S(D);
- Vars
- S(c);N_GUARD,XS(D)::QAR1(E),XS(e)
- S(c);N_GUARD::QAR1(E),XS(e)
- S(c);N_GUARD,SBLOCK::QAR1(E),XS(e)
- Refutation
- K(b);P-FLIGHT
- Try
- B(B);
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- S(c);
- Try
- B(B);
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- S(c);
- Try
- B(B);
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- S(c);XB(B)
- Try
- B(B);
- Vars
- S(c);N_GUARD::QAR1(E),XS(e)
- Refutation
- K(b);N_SPINS(e),P-FLIGHT,XB(B)
- Try
- B(B);XS(e)
- Refutation
- S(c);P_SPINS(c),XB(B)
- Try
- Q(E);N_PINS(e)
- Threat
- DUALS(2)
- Refutation
- S(c);XQ(E)
- Try
- Actual
- Q(E);N_PINS(e)
- Vars
- S(c);OGATE::QAR2(E)
- S(c);SBLOCK::S(D)
- S(e);N_GUARD::QAB(E)
- S(e);N_GUARD::QAR2(E),XS(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).