MESON Chess Problem Database
Problem Display
PID: 92262 (2B5/Q3K3/8/7p/6nk/8/6R1/8 w - - 0 1)
Lokker, Miklosh S
Deutsche Schachzeitung, 1967
#2
4 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sf2
- Tries
- 1.Qg1?
- 1...Kh3
- 2.Rh2#
- 2.Qh2#
- 2.Qh1#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Rxh2#
- 2.Qf2#
- 2.Qxh2#
- 2.Qe1#
- 1...Se3
- 2.Rh2#
- 2.Qf2#
- 2.Qh2#
- 2.Qe1#
- 2.Qh1#
- 1...Se5
- 2.Rh2#
- 2.Qf2#
- 2.Qh2#
- 2.Qe1#
- 2.Qh1#
- 1...Sf6
- 2.Rh2#
- 2.Qf2#
- 2.Qh2#
- 2.Qe1#
- 2.Qh1#
- 1...Sh6
- 2.Rh2#
- 2.Qf2#
- 2.Qh2#
- 2.Qe1#
- 2.Qh1#
- 1...Kg5!
- 1...Kh3
- 1.Qf2+?
- 1...Kh3
- 2.Rh2#
- 2.Qg3#
- 1...Kg5
- 2.Qf6#
- 1...Sxf2!
- 1...Kh3
- 1.Qe3?
- 1...Sf2
- 2.Qxf2#
- 2.Qg5#
- 2.Qg3#
- 1...Sh2
- 2.Rxh2#
- 2.Qf2#
- 2.Qg5#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Se5
- 2.Rh2#
- 2.Qf2#
- 2.Qg5#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Sf6
- 2.Rh2#
- 2.Qf2#
- 2.Qg5#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Sh6
- 2.Rh2#
- 2.Qf2#
- 2.Qg5#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Sxe3!
- 1...Sf2
- 1.Qd4?
- 1...Kg5
- 2.Qf6#
- 1...Kh3!
- 1...Kg5
- 1.Qc5?
- 1...Sf2
- 2.Qxf2#
- 2.Qg5#
- 1...Sh2
- 2.Qf2#
- 2.Qg5#
- 1...Se3
- 2.Qg5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 2.Qg5#
- 1...Sh6
- 2.Qf2#
- 2.Qg5#
- 1...Kh3!
- 1...Sf2
- 1.Qb6?
- 1...Kg5
- 2.Qf6#
- 1...Sf2
- 2.Qxf2#
- 2.Qf6#
- 1...Sh2
- 2.Qf2#
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf2#
- 2.Qf6#
- 1...Sf6
- 2.Qf2#
- 2.Qxf6#
- 1...Sh6
- 2.Qf2#
- 2.Qf6#
- 1...Kh3!
- 1...Kg5
- 1.Qa5?
- 1...Sf2
- 2.Qg5#
- 1...Sh2
- 2.Qe1#
- 2.Qg5#
- 1...Se3
- 2.Qe1#
- 2.Qg5#
- 1...Se5
- 2.Qe1#
- 1...Sf6
- 2.Qe1#
- 2.Qg5#
- 1...Sh6
- 2.Qe1#
- 2.Qg5#
- 1...Kh3!
- 1...Sf2
- 1.Qa6?
- 1...Kg5
- 2.Qf6#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Kh3!
- 1...Kg5
- 1.Qg1?
- Keys
- 1.Qa1!
- 1...Kh3
- 2.Qh1#
- 1...Kg5
- 2.Qf6#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 2.Qe1#
- 1...Se3
- 2.Qf6#
- 2.Qe1#
- 2.Qh1#
- 1...Se5
- 2.Qe1#
- 2.Qh1#
- 1...Sf6
- 2.Qxf6#
- 2.Qe1#
- 2.Qh1#
- 1...Sh6
- 2.Qf6#
- 2.Qe1#
- 2.Qh1#
- 1...Kh3
- 1.Qa1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD::QAB(B)
- Tries
- Try
- Q(B);
- Vars
- S(a);N_GUARD::QAB(B),XS(a)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAB1(B)
- Refutation
- S(a);XQ(B)
- Try
- Q(B);
- Refutation
- S(a);XQ(B)
- Try
- Q(B);P_PINS(a)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(B);
- Vars
- S(a);::QAB1(B)
- S(a);N_GUARD::QAB(B)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a)
- Try
- Q(B);
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAB1(B)
- S(a);N_GUARD::QAB(B)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a)
- Try
- Q(B);
- Vars
- S(a);::QAB1(B)
- S(a);N_GUARD::QAB(B)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a)
- Try
- Q(B);
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAB1(B)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a)
- Try
- Actual
- Q(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(a)::QAR2(B)
- K(b);P_SPINS(a),S_FLIGHT::QAB1(B)
- S(a);N_GUARD::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).