MESON Chess Problem Database
Problem Display
PID: 227809 (8/Qp6/p1np2N1/PbNk1K2/3b4/1P1n4/B4B2/3R4 w - - 0 1)
Kazar, Aladar
Ujsag, 1926
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bc3
- 2.Sf4#
- 1...Bxc5
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bg7
- 2.Sf4#
- 1...Bh8
- 2.Sf4#
- 1...Ba4
- 2.bxa4#
- 1...Bc4
- 2.bxc4#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sb2
- 2.Sf4#
- 1...Sxf2
- 2.Sf4#
- 1...Sdb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sxc5
- 2.Sf4#
- 1...Sde5
- 2.Sf4#
- 1...Scb4
- 2.Se7#
- 1...Sxa5
- 2.Se7#
- 1...Sce5
- 2.Se7#
- 1...Se7+
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Ba1
- Tries
- 1.Sxd3?
- threat
- 2.Sdf4#
- 2.Sgf4#
- 1...Se7+
- 2.Sxe7#
- 1...Sxa5
- 2.Sb4#
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Sb4
- 2.Sxb4#
- 2.Se7#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sb8
- 2.Sb4#
- 2.Se7#
- 1...Sd8
- 2.Sb4#
- 2.Se7#
- 1...Be3
- 2.Sb4#
- 2.Sdf4#
- 1...Be5
- 2.Sb4#
- 2.Sdf4#
- 1...b6
- 2.Sgf4#
- 2.Qf7#
- 1...Bxd3+!
- threat
- 1.Se4?
- 1...Se7+
- 2.Sxe7#
- 1...Bxf2
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Bxa7
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sxf2
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sxa5
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Scb4
- 2.Se7#
- 1...Sce5
- 2.Se7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bc3
- 2.Sxc3#
- 2.Sf4#
- 1...Be3
- 2.Sc3#
- 2.Sf6#
- 1...Bc5
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Bb6
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Bf6
- 2.Sxf6#
- 2.Sf4#
- 1...Bg7
- 2.Sf4#
- 1...Bh8
- 2.Sf4#
- 1...Ba4
- 2.bxa4#
- 1...Bc4
- 2.bxc4#
- 1...Sc1
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Se1
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sb2
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sdb4
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sf4
- 2.Sc3#
- 2.Sf6#
- 2.Sxf4#
- 1...Sc5
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...Sde5
- 2.Sc3#
- 2.Sf6#
- 2.Sf4#
- 1...b6
- 2.Qf7#
- 1...Be5!
- 1...Se7+
- 1.Se6?
- threat
- 2.Sc7#
- 1...Se7+
- 2.Sxe7#
- 1...Sxa5
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Scb4
- 2.Se7#
- 1...Sce5
- 2.Se7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Bb6
- 2.Sef4#
- 2.Sgf4#
- 1...b6!
- threat
- 1.Sd7?
- 1...Se7+
- 2.Sxe7#
- 1...Bxf2
- 2.Sf4#
- 2.Sf6#
- 1...Bxa7
- 2.Sf4#
- 2.Sf6#
- 1...Sxf2
- 2.Sf4#
- 2.Sf6#
- 1...Sxa5
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Scb4
- 2.Se7#
- 1...Sce5
- 2.Se7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Be5
- 2.Sb6#
- 1...Ba1
- 2.Sf4#
- 2.Sb6#
- 1...Bb2
- 2.Sf4#
- 2.Sb6#
- 1...Bc3
- 2.Sf4#
- 2.Sb6#
- 1...Be3
- 2.Sf6#
- 1...Bc5
- 2.Sf4#
- 2.Sf6#
- 1...Bb6
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 1...Bf6
- 2.Sf4#
- 2.Sb6#
- 2.Sxf6#
- 1...Bg7
- 2.Sf4#
- 2.Sb6#
- 1...Bh8
- 2.Sf4#
- 2.Sb6#
- 1...Ba4
- 2.bxa4#
- 1...Bc4
- 2.bxc4#
- 1...Sc1
- 2.Sf4#
- 2.Sf6#
- 1...Se1
- 2.Sf4#
- 2.Sf6#
- 1...Sb2
- 2.Sf4#
- 2.Sf6#
- 1...Sdb4
- 2.Sf4#
- 2.Sf6#
- 1...Sf4
- 2.Sxf4#
- 2.Sf6#
- 1...Sc5
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 1...Sde5
- 2.Sf4#
- 2.Sf6#
- 1...b6!
- 1...Se7+
- 1.Sxd3?
- Keys
- 1.Sa4!
- 1...Se7+
- 2.Sxe7#
- 1...Bxf2
- 2.Sc3#
- 2.Sf4#
- 1...Bxa7
- 2.Sc3#
- 2.Sf4#
- 1...Bxa4
- 2.bxa4#
- 1...Sxf2
- 2.Sc3#
- 2.Sf4#
- 1...Sxa5
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Scb4
- 2.Se7#
- 1...Sce5
- 2.Se7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Ba1
- 2.Sb6#
- 2.Sf4#
- 1...Bb2
- 2.Sb6#
- 2.Sf4#
- 1...Bc3
- 2.Sxc3#
- 2.Sb6#
- 2.Sf4#
- 1...Be3
- 2.Sc3#
- 1...Bc5
- 2.Sc3#
- 2.Sf4#
- 1...Be5
- 2.Sb6#
- 1...Bb6
- 2.Sc3#
- 2.Sxb6#
- 2.Sf4#
- 1...Bf6
- 2.Sb6#
- 2.Sf4#
- 1...Bg7
- 2.Sb6#
- 2.Sf4#
- 1...Bh8
- 2.Sb6#
- 2.Sf4#
- 1...Bc4
- 2.bxc4#
- 1...Sc1
- 2.Sc3#
- 2.Sf4#
- 1...Se1
- 2.Sc3#
- 2.Sf4#
- 1...Sb2
- 2.Sc3#
- 2.Sf4#
- 1...Sdb4
- 2.Sc3#
- 2.Sf4#
- 1...Sf4
- 2.Sc3#
- 2.Sxf4#
- 1...Sc5
- 2.Sc3#
- 2.Sb6#
- 2.Sf4#
- 1...Sde5
- 2.Sc3#
- 2.Sf4#
- 1...b6
- 2.Qf7#
- 1...Se7+
- 1.Sa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 15
- Sets
- B(b);P_SPINS(a)::S(H)
- B(b);P_SPINS(a),XS(F)::S(H)
- B(c);OGATE::B(B)+P(D),XB(c)
- B(c);OGATE::P(D),XB(c)
- S(a);N_GUARD,P_SPINB(b)::S(H)
- S(a);N_GUARD,P_SPINB(b),XB(C)::S(H)
- S(a);N_GUARD,P_SPINB(b)::S(H),XS(a)
- S(a);N_GUARD,P_SPINB(b),XS(F)::S(H)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD,XP(E)::S(H)
- S(f);CHECK,N_GUARD::S(H),XS(f)
- Tries
- Try
- S(F);XS(a)
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- S(f);N_GUARD,XQ(I)::S(H)
- Refutation
- B(c);CHECK,XS(F)
- Try
- S(F);
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- S(f);N_GUARD,XP(E)::S(H)
- S(f);N_GUARD,XQ(I)::S(H)
- S(f);N_GUARD::S(H)
- B(b);P_SPINS(a)::S(H)
- B(c);OGATE::B(B)+P(D),XB(c)
- B(c);OGATE::P(D),XB(c)
- P(h);OGATE::QAB(I)
- Refutation
- B(b);P_SPINS(a)
- Try
- S(F);
- Threat
- S(F)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- S(f);N_GUARD,XP(E)::S(H)
- S(f);N_GUARD,XQ(I)::S(H)
- S(f);N_GUARD::S(H)
- Refutation
- P(h);
- Try
- S(F);
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- S(f);N_GUARD,XP(E)::S(H)
- S(f);N_GUARD,XQ(I)::S(H)
- S(f);N_GUARD::S(H)
- B(b);N_GUARD,P_SPINS(a)::S(F)
- B(c);OGATE::B(B)+P(D),XB(c)
- B(c);OGATE::P(D),XB(c)
- Refutation
- P(h);
- Try
- Actual
- S(F);
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- B(c);OGATE,XS(F)::B(B)+P(D),XB(c)
- S(f);N_GUARD,XP(E)::S(H)
- S(f);N_GUARD,XQ(I)::S(H)
- S(f);N_GUARD::S(H)
- B(b);N_GUARD,P_SPINS(a)::S(F)
- B(c);OGATE::P(D),XB(c)
- P(h);OGATE::QAB(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).