MESON Chess Problem Database
Problem Display
PID: 20904 (8/K6p/7k/4N2N/5P2/4Qn2/4B3/8 w - - 0 1)
Havel, Miroslav
Svetozor, 1913
#2
6 + 3
| 6024 | Bohemian Garnets | 1923 |
| 4312 | Ceske Granaty | 1975 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sxe5
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Se1
- Tries
- 1.Ka6?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Kb6?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.f5#
- 1...Sg1
- 2.f5#
- 1...Sd2
- 2.f5#
- 1...Sh2
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Kb7?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Ka8?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Kb8?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Bd1?
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qb6#
- 2.f5#
- 1...Sg1
- 2.Qb6#
- 2.f5#
- 1...Sd2
- 2.Qb6#
- 2.f5#
- 1...Sh2
- 2.Qb6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5!
- 1...Sxe5
- 1.Qg1?
- 1...Kxh5
- 2.Qh2#
- 2.Qh1#
- 2.Qg5#
- 1...Sxe5
- 2.Qg5#
- 2.Qg7#
- 1...Se1
- 2.Sf7#
- 2.Qb6#
- 2.Qg5#
- 2.Qg7#
- 1...Sd2
- 2.Sf7#
- 2.Qb6#
- 2.Qg5#
- 2.Qg7#
- 1...Sh2
- 2.Sf7#
- 2.Qb6#
- 2.Qg5#
- 2.Qg7#
- 1...Sd4
- 2.Sf7#
- 2.Qg5#
- 2.Qg7#
- 1...Sh4
- 2.Sf7#
- 2.Qg5#
- 2.Qg7#
- 1...Sg5
- 2.Qxg5#
- 2.fxg5#
- 1...Sxg1!
- 1...Kxh5
- 1.f5+?
- 1...Sg5
- 2.Sf7#
- 1...Kxh5!
- 1...Sg5
- 1.Ka6?
- Keys
- 1.Qc1!
- 1...Kxh5
- 2.Qh1#
- 1...Sxe5
- 2.f5#
- 1...Se1
- 2.Qc6#
- 2.f5#
- 1...Sg1
- 2.Qc6#
- 2.f5#
- 1...Sd2
- 2.Qc6#
- 1...Sh2
- 2.Qc6#
- 2.f5#
- 1...Sd4
- 2.f5#
- 1...Sh4
- 2.f5#
- 1...Sg5
- 2.fxg5#
- 1...Kxh5
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- K(F);S_FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- K(F);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- K(F);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- K(F);S_FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- B(A);
- Vars
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- Q(B);
- Refutation
- S(a);XQ(B)
- Try
- P(C);CHECK
- Vars
- S(a);P_SPINS(a)::S(D)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(E)
- Try
- Actual
- Q(B);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINS(a),XS(E)::QAR(B)
- S(a);N_GUARD,XS(D)::QAB(B)+P(C)
- S(a);::QAR(B)
- S(a);N_GUARD::QAB(B)+P(C)
- S(a);OGATE::P(C),XS(a)
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).