MESON Chess Problem Database
Problem Display
PID: 117923 (4BB2/2p5/8/3N1Q2/p1kpR1n1/2n5/2K5/8 w - - 0 1)
Paros, Gyorgy
Uj Nemezdek, 1927
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxd5
- 2.Qf1#
- 1...Sf2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Se3+
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 1...Sf6
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...c6
- 2.Sb6#
- 1...Sxd5
- Tries
- 1.Sxc3?
- threat
- 2.Bb5#
- 2.Bf7#
- 2.Qe6#
- 2.Qf1#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 2.Qf7#
- 1...c5
- 2.Qxc5#
- 1...Sf2
- 2.Bb5#
- 2.Bf7#
- 2.Qe6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 2.Qf7#
- 1...Sh2
- 2.Bb5#
- 2.Bf7#
- 2.Qe6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 2.Qf7#
- 1...Se5
- 2.Bb5#
- 2.Qe6#
- 1...Sf6
- 2.Bb5#
- 2.Qf1#
- 2.Qb5#
- 2.Qc5#
- 1...Sh6
- 2.Bb5#
- 2.Qe6#
- 2.Qf1#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...c6
- 2.Bf7#
- 2.Qe6#
- 2.Qf1#
- 2.Qc5#
- 2.Qf7#
- 1...Se3+!
- threat
- 1.Qe6?
- threat
- 2.Sxc3#
- 2.Se3#
- 2.Sb6#
- 2.Qc6#
- 1...Se3+
- 2.Sxe3#
- 1...Sxe4
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sxd5
- 2.Qa6#
- 2.Qc6#
- 1...c6
- 2.Sxc3#
- 2.Qxc6#
- 1...Se5
- 2.Sxc3#
- 2.Se3#
- 2.Sb6#
- 1...Sb1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 2.Qc6#
- 1...Sd1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 2.Qc6#
- 1...Sa2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 2.Qc6#
- 1...Se2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 2.Qc6#
- 1...Sb5
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 2.Qc6#
- 1...Sf6
- 2.Se3#
- 2.Sb6#
- 2.Qc6#
- 1...c5!
- threat
- 1.Qd7?
- threat
- 2.Qc6#
- 1...Se3+
- 2.Sxe3#
- 1...Sxe4
- 2.Qb5#
- 1...c6
- 2.Qxc6#
- 1...Se5
- 2.Se3#
- 1...c5!
- threat
- 1.Qf7?
- threat
- 2.Sxc3#
- 2.Se3#
- 2.Sb6#
- 1...Se3+
- 2.Sxe3#
- 1...Sxe4
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sxd5
- 2.Qf1#
- 1...c6
- 2.Sxc3#
- 1...Se5
- 2.Se3#
- 2.Sb6#
- 1...Sb1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sd1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sa2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Se2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sb5
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sxc7#
- 1...Sf6
- 2.Se3#
- 2.Sb6#
- 1...Sh6
- 2.Se3#
- 2.Sb6#
- 1...c5!
- threat
- 1.Sxc3?
- Keys
- 1.Qc8!
- threat
- 2.Sb6#
- 1...Se3+
- 2.Sxe3#
- 1...Kxd5
- 2.Qe6#
- 1...Sxd5
- 2.Qa6#
- 1...c6
- 2.Qxc6#
- 1...c5
- 2.Qxc5#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(a);N_GUARD,SBLOCK,XS(C)::QAB(D)
- S(e);N_GUARD::S(C)
- S(e);CHECK,N_GUARD::S(C),XS(e)
- P(f);N_GUARD::S(C)
- Tries
- Try
- S(C);XS(a)
- Threat
- DUALS(8)
- Vars
- P(f);::QAR1(D),XP(f)
- Refutation
- S(e);CHECK
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- S(e);CHECK::QAB(D)+S(C),DCHECK,XS(e)
- Refutation
- P(f);
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- S(e);CHECK,N_GUARD::S(C),XS(e)
- S(a);N_GUARD,N_SPINP(d),XR(B)::QAB1(D)
- P(f);::QAR2(D),XP(f)
- S(e);N_GUARD::S(C)
- Refutation
- P(f);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(e);CHECK::QAB(D)+S(C),DCHECK,XS(e)
- S(a);N_GUARD,P_SPINS(a),SBLOCK,XS(C)::QAB(D)
- P(f);::QAB(D)+S(C),XS(a)
- Refutation
- P(f);
- Try
- Actual
- Q(D);
- Threat
- S(C)
- Vars
- S(e);CHECK,N_GUARD::S(C),XS(e)
- K(c);N_SPINP(d),OGATEB,S_FLIGHT,XS(C)::QAB1(D)
- S(a);N_GUARD,SBLOCK,XS(C)::QAB(D)
- P(f);OGATE::QAR2(D),XP(f)
- P(f);OGATE::QAR1(D),XP(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).