MESON Chess Problem Database
Problem Display
PID: 262481 (8/n3N2N/4PR2/p1Ppk1p1/Rp2pnK1/Pp2QP2/1P6/8 w - - 0 1)
Zilahi, Zoltan
Europe Echecs, 1960
#2
11 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...Sg6
- 2.Sxg6#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...bxa3
- 2.Qd4#
- 1...d4
- 2.Qxe4#
- 1...Se2
- Tries
- 1.Rxb4?
- threat
- 2.Qd4#
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...Se2
- 2.Sg6#
- 2.Qxg5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...d4
- 2.Qxd4#
- 2.Qxe4#
- 1...axb4!
- threat
- 1.Rxa5?
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...d4
- 2.Qxe4#
- 1...bxa3!
- 1...Sxe6
- 1.Qg1?
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...bxa3
- 2.Qd4#
- 1...exf3
- 2.Qe3#
- 1...e3
- 2.Qxe3#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...d4!
- 1...Sxe6
- 1.Qf2?
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...bxa3
- 2.Qd4#
- 1...exf3
- 2.Qe3#
- 1...e3
- 2.Qxe3#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...d4!
- 1...Sxe6
- 1.axb4?
- 1...Sxe6
- 2.Sg6#
- 2.Rf5#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...d4
- 2.Qxe4#
- 1...axb4!
- 1...Sxe6
- 1.Rxb4?
- Keys
- 1.Qxb3!
- 1...Kd4
- 2.Qc3#
- 1...Sxe6
- 2.Qxd5#
- 1...bxa3
- 2.Qb8#
- 1...exf3
- 2.Qe3#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sd3
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sh5
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...e3
- 2.Qxe3#
- 1...d4
- 2.Rf5#
- 1...Kd4
- 1.Qxb3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::S(J)
- S(d);N_GUARD::S(J),XS(d)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- P(b);XP(B)::QAB1(C)
- P(f);N_GUARD::QAR1(C),XP(c)
- Tries
- Try
- R(E);XP(b)
- Threat
- QAB1(C)
- Vars
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- Refutation
- P(e);XR(E)
- Try
- R(E);XP(e)
- Vars
- S(d);N_GUARD::S(J)
- S(d);N_GUARD::S(J),XS(d)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- P(f);N_GUARD::QAR1(C),XP(c)
- Refutation
- P(b);XP(B)
- Try
- Q(C);N_PINP(c)
- Vars
- P(b);XP(B)::QAB1(C)
- P(c);OGATEB,XP(D)::QAR2(C)
- P(c);OGATEB::QAR2(C),XP(c)
- S(d);N_GUARD::S(J)
- S(d);N_GUARD::S(J),XS(d)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- Refutation
- P(f);
- Try
- Q(C);N_PINP(c)
- Vars
- P(b);XP(B)::QAB1(C)
- P(c);OGATEB,XP(D)::QAR2(C)
- P(c);OGATEB::QAR2(C),XP(c)
- S(d);N_GUARD::S(J)
- S(d);N_GUARD::S(J),XS(d)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- Refutation
- P(f);
- Try
- P(B);XP(b)
- Vars
- S(d);N_GUARD::S(J)
- S(d);N_GUARD::S(J),XS(d)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- P(f);N_GUARD::QAR1(C),XP(c)
- Refutation
- P(e);XP(B)
- Try
- Actual
- Q(C);N_PINP(c),XP(a)
- Vars
- K(g);P_SPINP(b),S_CUTP(f),S_FLIGHT::QAB1(C)
- S(d);N_GUARD,XP(H)::QAR1(C),XP(f)
- P(b);OGATE,XP(B)::QAB(C)
- P(c);OGATEB,XP(D)::QAR2(C)
- S(d);N_GUARD::QAR1(C),XP(f)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- P(c);OGATEB::QAR2(C),XP(c)
- P(f);SBLOCK::R1(I)
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).