MESON Chess Problem Database
Problem Display
PID: 63280 (2B2KRn/2p1R2p/r4kpP/2p5/5p1P/3P4/pP3n1N/qb1Q4 w - - 0 1)
Janevski, Zivko
Mihajloski, Zlatko
Miloseski, Bosko
The Problemist, 1977
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Sxd1
- 2.Sg4#
- 1...Sh1
- 2.Sg4#
- 1...Sxd3
- 2.Sg4#
- 1...Sh3
- 2.Sg4#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...f3
- 2.Qxf3#
- 1...g5
- 2.hxg5#
- 1...Sxd1
- Tries
- 1.Qb3?
- threat
- 2.Qc3#
- 1...Qxb2
- 2.Qxb2#
- 1...Sxd3
- 2.Sg4#
- 1...Re6
- 2.Qxe6#
- 1...Ra3
- 2.Qe6#
- 1...Ra4
- 2.Qe6#
- 1...Sd1
- 2.Sg4#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf7
- 2.Qxf7#
- 1...Rd6!
- threat
- 1.Qf3?
- threat
- 2.Qxf4#
- 1...Sxd3
- 2.Sg4#
- 1...Ra4
- 2.Qc6#
- 1...Sh3
- 2.Sg4#
- 1...g5
- 2.hxg5#
- 1...Bxd3!
- threat
- 1.Qg4?
- threat
- 2.Qxf4#
- 2.Qg5#
- 1...Bxd3
- 2.Qg5#
- 1...Sxd3
- 2.Qg5#
- 1...Sxg4
- 2.Sxg4#
- 1...Ra4
- 2.Re6#
- 2.Qe6#
- 2.Qg5#
- 1...Se4
- 2.Qxf4#
- 1...Sf7
- 2.Qxf4#
- 1...f3
- 2.Qxf3#
- 2.Qf4#
- 2.Qg5#
- 1...g5
- 2.Qf5#
- 2.Qxg5#
- 2.hxg5#
- 1...Sh3!
- threat
- 1.Qh5?
- threat
- 2.Qe5#
- 2.Qg5#
- 1...Qxb2
- 2.Qg5#
- 1...Sxd3
- 2.Sg4#
- 2.Qg5#
- 1...Re6
- 2.Rxe6#
- 2.Qg5#
- 1...Sh3
- 2.Sg4#
- 2.Qe5#
- 1...Se4
- 2.Sg4#
- 2.Qe5#
- 1...Sg4
- 2.Sxg4#
- 2.Qg5#
- 1...Sf7
- 2.Rxf7#
- 1...g5
- 2.Qxg5#
- 2.hxg5#
- 1...gxh5!
- threat
- 1.Qc1?
- threat
- 2.Qxf4#
- 2.Qc3#
- 1...Qxb2
- 2.Qxb2#
- 2.Qxf4#
- 1...Bxd3
- 2.Qc3#
- 1...Sxd3
- 2.Sg4#
- 1...Re6
- 2.Qxf4#
- 1...Ra3
- 2.Qxf4#
- 1...Rd6
- 2.Qxf4#
- 1...Bc2
- 2.Qxf4#
- 1...Sd1
- 2.Sg4#
- 2.Qxf4#
- 1...Sh3
- 2.Sg4#
- 2.Qc3#
- 1...Se4
- 2.Sg4#
- 2.Qxf4#
- 1...Sg4
- 2.Sxg4#
- 2.Qxf4#
- 1...Sf7
- 2.Qxf4#
- 1...f3
- 2.Qf4#
- 2.Qg5#
- 2.Qc3#
- 1...g5
- 2.Qc3#
- 2.hxg5#
- 1...Ra4!
- threat
- 1.Qe1?
- threat
- 2.Qc3#
- 2.Qe5#
- 1...Sxd3
- 2.Sg4#
- 1...Re6
- 2.Qxe6#
- 1...Ra3
- 2.Qe5#
- 2.Qe6#
- 1...Ra4
- 2.Qe5#
- 2.Qe6#
- 1...Rd6
- 2.Qe5#
- 1...Sd1
- 2.Sg4#
- 2.Qe5#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf7
- 2.Rxf7#
- 1...Qxb2!
- threat
- 1.Qg1?
- threat
- 2.Qg5#
- 1...Sh3
- 2.Sg4#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...g5
- 2.Qxg5#
- 2.hxg5#
- 1...Sf7!
- threat
- 1.Qd2?
- threat
- 2.Qc3#
- 2.Qxf4#
- 1...Qxb2
- 2.Qxf4#
- 2.Qxb2#
- 1...Bxd3
- 2.Qc3#
- 1...Sxd3
- 2.Sg4#
- 1...Re6
- 2.Qxf4#
- 1...Ra3
- 2.Qxf4#
- 1...Rd6
- 2.Qxf4#
- 1...Sd1
- 2.Sg4#
- 2.Qxf4#
- 1...Sh3
- 2.Sg4#
- 2.Qc3#
- 1...Se4
- 2.Sg4#
- 2.Qxf4#
- 1...Sg4
- 2.Sxg4#
- 2.Qxf4#
- 1...Sf7
- 2.Qxf4#
- 1...f3
- 2.Qc3#
- 2.Qf4#
- 2.Qg5#
- 1...g5
- 2.Qc3#
- 2.hxg5#
- 1...Ra4!
- threat
- 1.Qb3?
- Keys
- 1.Qe2!
- threat
- 2.Qe5#
- 1...Qxb2
- 2.Qxb2#
- 1...Sxd3
- 2.Sg4#
- 1...Re6
- 2.Qxe6#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf7
- 2.Rxf7#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- S(d);N_GUARD,XQ(A)::S(C)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD,XP(D)::S(C)
- S(d);N_GUARD::S(C),XS(d)
- P(e);OGATEB::QAR(A),XP(e)
- P(i);OGATE::P(E),XP(i)
- Tries
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- Q(a);OGATE,XP(B)::QAB(A),XQ(a)
- S(d);N_GUARD,XP(D)::S(C)
- R(g);N_GUARD::QAR1(A),XR(g)
- R(g);N_GUARD::QAR1(A)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(l);N_GUARD::QAR1(A),XS(l)
- Refutation
- R(g);
- Try
- Q(A);P_PINP(e)
- Threat
- QAR2(A),XP(e)
- Vars
- S(d);N_GUARD,XP(D)::S(C)
- R(g);N_GUARD::QAR(A)
- S(d);N_GUARD::S(C)
- P(i);OGATE::P(E),XP(i)
- Refutation
- B(b);XP(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::QAB1(A)
- S(d);XP(D)::QAB1(A)
- S(d);XQ(A)::S(C),XS(d)
- S(d);::QAR2(A),XP(e)
- S(l);::QAR2(A),XP(e)
- Refutation
- S(d);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::QAB1(A)
- S(l);N_GUARD::R1(G),XS(l)
- Refutation
- P(i);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::QAB(A)
- S(d);N_GUARD,XP(D)::S(C)
- R(g);::QAR2(A),XP(e)
- B(b);::QAR2(A),XP(e)
- S(l);::QAR2(A),XP(e)
- Refutation
- R(g);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XP(D)::S(C)
- R(g);N_GUARD::QAR1(A),XR(g)
- R(g);::QAB1(A)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(l);N_GUARD::R1(G),XS(l)
- Refutation
- Q(a);XP(B)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- S(l);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::QAB(A)
- S(d);N_GUARD,XP(D)::S(C)
- R(g);::QAR2(A),XP(e)
- S(l);::QAR2(A),XP(e)
- Refutation
- R(g);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(a);OGATE,XP(B)::QAB(A),XQ(a)
- S(d);N_GUARD,XP(D)::S(C)
- R(g);N_GUARD::QAR1(A),XR(g)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(l);N_GUARD::R1(G),XS(l)
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).