MESON Chess Problem Database
Problem Display
PID: 114829 (K7/pp6/q7/2R5/3Pkp2/1N3n2/3P2Q1/8 w - - 0 1)
Andrade, Barry Jack da Costa
Andradiana, 1961
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qxf3#
- 1...Qf1
- 2.Qg6#
- 1...Qe2
- 2.Qxe2#
- 2.Qg6#
- 1...Qd3
- 2.Re5#
- 2.Qg6#
- 1...Qc4
- 2.Qg6#
- 1...Qb5
- 2.Qg6#
- 1...Qa1
- 2.Qe2#
- 2.Qg6#
- 1...Qa2
- 2.Qe2#
- 2.Qg6#
- 1...Qa3
- 2.Qe2#
- 2.Qg6#
- 1...Qa4
- 2.Qe2#
- 2.Qg6#
- 1...Qa5
- 2.Qe2#
- 2.Qg6#
- 1...Qb6
- 2.Qe2#
- 1...Qc6
- 2.Qe2#
- 1...Qd6
- 2.Qe2#
- 1...Qe6
- 2.Qe2#
- 1...Qf6
- 2.Qe2#
- 1...Qg6
- 2.Qe2#
- 2.Qxg6#
- 1...Qh6
- 2.Qe2#
- 1...b5
- 2.Qe2#
- 1...b6
- 2.Qg6#
- 1...Kd3
- Tries
- 1.Kb8?
- 1...Kd3
- 2.Qxf3#
- 1...Qf1
- 2.Qg6#
- 1...Qe2
- 2.Qxe2#
- 2.Qg6#
- 1...Qd3
- 2.Re5#
- 2.Qg6#
- 1...Qc4
- 2.Qg6#
- 1...Qb5
- 2.Qg6#
- 1...Qa1
- 2.Qe2#
- 2.Qg6#
- 1...Qa2
- 2.Qe2#
- 2.Qg6#
- 1...Qa3
- 2.Qe2#
- 2.Qg6#
- 1...Qa4
- 2.Qe2#
- 2.Qg6#
- 1...Qa5
- 2.Qe2#
- 2.Qg6#
- 1...Qb6
- 2.Qe2#
- 1...Qc6
- 2.Qe2#
- 1...Qe6
- 2.Qe2#
- 1...Qf6
- 2.Qe2#
- 1...Qg6
- 2.Qe2#
- 2.Qxg6#
- 1...Qh6
- 2.Qe2#
- 1...b5
- 2.Qe2#
- 1...b6
- 2.Qg6#
- 1...Qd6+!
- 1...Kd3
- 1.d3+?
- 1...Kxd3
- 2.Qxf3#
- 1...Qxd3
- 2.Re5#
- 1...Ke3!
- 1...Kxd3
- 1.Kb8?
- Keys
- 1.Qh1!
- 1...Kd3
- 2.Qxf3#
- 1...Qf1
- 2.Qh7#
- 1...Qe2
- 2.Qh7#
- 1...Qd3
- 2.Re5#
- 2.Qh7#
- 1...Qc4
- 2.Qh7#
- 1...Qb5
- 2.Qh7#
- 1...Qa1
- 2.Qh7#
- 1...Qa2
- 2.Qh7#
- 1...Qa3
- 2.Qb1#
- 2.Qh7#
- 1...Qa4
- 2.Qb1#
- 2.Qh7#
- 1...Qa5
- 2.Qb1#
- 2.Qh7#
- 1...Qb6
- 2.Qb1#
- 1...Qc6
- 2.Qb1#
- 1...Qd6
- 2.Qb1#
- 1...Qe6
- 2.Qb1#
- 1...Qf6
- 2.Qb1#
- 1...Qg6
- 2.Qb1#
- 1...Qh6
- 2.Qb1#
- 1...b5
- 2.Qb1#
- 1...b6
- 2.Qh7#
- 1...Kd3
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- K(b);N_SPINS(a),S_FLIGHT::QAR2(B),XS(a)
- Q(d);N_GUARD::QAB(B)
- Q(d);N_GUARD::QAR2(B)
- P(f);S_CUTQ(d)::QAR2(B)
- P(f);S_CUTQ(d)::QAB(B)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- K(b);N_SPINS(a),S_FLIGHT::QAR2(B),XS(a)
- Q(d);N_GUARD::QAB(B)
- Q(d);N_GUARD::QAR2(B)
- P(f);S_CUTQ(d)::QAR2(B)
- P(f);S_CUTQ(d)::QAB(B)
- Refutation
- Q(d);CHECK
- Try
- P(A);CHECK
- Vars
- K(b);N_SPINS(a),S_FLIGHT,XP(A)::QAR2(B),XS(a)
- Q(d);SBLOCK,XP(A)::R1(E)
- Refutation
- K(b);N_SPINS(a),P-FLIGHT
- Try
- Actual
- Q(B);
- Vars
- K(b);N_SPINS(a),S_FLIGHT::QAR2(B),XS(a)
- Q(d);N_GUARD::QAB(B)
- P(f);S_CUTQ(d)::QAB(B)
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).