MESON Chess Problem Database
Problem Display
PID: 140197 (K2n4/R1p1qb2/1pk2N2/1pPp4/1PPR3P/n5BQ/2NP4/5B2 w - - 0 1)
Petite, Efren
Probleemblad, 1975
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Rxc7#
- 2.Qd7#
- 1...Qxf6
- 2.Rxc7#
- 1...Qf8
- 2.Rxc7#
- 2.Qd7#
- 1...Qe1
- 2.Rxc7#
- 2.Qd7#
- 1...Qe2
- 2.Rxc7#
- 2.Qd7#
- 1...Qe3
- 2.Rxc7#
- 2.Qd7#
- 1...Qe4
- 2.Rxc7#
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Qe6
- 2.Rxc7#
- 1...Qd7
- 2.Qxd7#
- 1...Qe8
- 2.Rxc7#
- 1...Bh5
- 2.cxd5#
- 1...Bg6
- 2.cxd5#
- 1...Be8
- 2.cxd5#
- 1...Sb1
- 2.cxb5#
- 1...Sxc2
- 2.cxb5#
- 1...Se6
- 2.cxd5#
- 1...bxc5
- 2.Ra6#
- 1...Qxc5
- Tries
- 1.Rd3?
- threat
- 2.Sd4#
- 1...Qxc5
- 2.Rxc7#
- 2.Qd7#
- 1...Qxf6
- 2.Rxc7#
- 1...bxc5
- 2.Ra6#
- 1...Qe3
- 2.Rxc7#
- 2.Qd7#
- 1...Qe4
- 2.Rxc7#
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Se6
- 2.cxd5#
- 1...d4
- 2.Sxd4#
- 1...Sxc2!
- threat
- 1.Rf4?
- threat
- 2.Sd4#
- 1...Qxc5
- 2.Qd7#
- 1...Sxc2
- 2.cxb5#
- 1...bxc5
- 2.Ra6#
- 1...Qe3
- 2.Qd7#
- 1...Qe4
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Se6
- 2.cxd5#
- 1...d4
- 2.Sxd4#
- 1...Qxf6!
- threat
- 1.Rg4?
- threat
- 2.Sd4#
- 1...Qxc5
- 2.Rxc7#
- 1...Qxf6
- 2.Rxc7#
- 1...Sxc2
- 2.cxb5#
- 1...bxc5
- 2.Ra6#
- 1...Qe3
- 2.Rxc7#
- 1...Qe4
- 2.Rxc7#
- 1...Se6
- 2.cxd5#
- 1...d4
- 2.Sxd4#
- 1...Qe5!
- threat
- 1.Rxd5?
- threat
- 2.Sd4#
- 1...Qxc5
- 2.Rxc7#
- 2.Qd7#
- 1...Qxf6
- 2.Rxc7#
- 2.Qd7#
- 1...Sxc2
- 2.cxb5#
- 1...bxc5
- 2.Ra6#
- 1...Qe3
- 2.Rxc7#
- 2.Qd7#
- 1...Qe4
- 2.Rxc7#
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Se6!
- threat
- 1.Qe6+?
- 1...Qd6
- 2.cxd5#
- 1...Qxe6
- 2.Rxc7#
- 1...Sxe6
- 2.cxd5#
- 1...Bxe6!
- 1...Qd6
- 1.Rd3?
- Keys
- 1.Re4!
- threat
- 2.Sd4#
- 1...Qxc5
- 2.Rxc7#
- 2.Qd7#
- 1...Qxf6
- 2.Rxc7#
- 1...Qxe4
- 2.Rxc7#
- 2.Qd7#
- 1...Sxc2
- 2.cxb5#
- 1...bxc5
- 2.Ra6#
- 1...Qe5
- 2.Qd7#
- 1...Se6
- 2.cxd5#
- 1...d4
- 2.Sxd4#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(g);N_GUARD,XS(K)::R1(L),XP(f)
- Q(g);N_GUARD::QAB1(E)
- Q(g);N_GUARD::R1(L),XP(f)
- Q(g);N_GUARD::QAB1(E),XQ(g)
- B(h);N_GUARD::P(G),XP(c)
- S(a);N_GUARD::P(G),XP(b)
- S(a);N_GUARD,XS(B)::P(G),XP(b)
- S(i);S_CUTB(h)::P(G),XP(c)
- P(d);OGATEB,XP(J)::R(L)
- Tries
- Try
- R(H);
- Threat
- S(B)
- Vars
- Q(g);N_GUARD,XS(K)::R1(L),XP(f)
- P(d);OGATEB,XP(J)::R(L)
- Q(g);N_GUARD::QAB1(E)
- S(i);S_CUTB(h)::P(G),XP(c)
- P(c);::S(B),XP(c)
- Refutation
- S(a);XS(B)
- Try
- R(H);
- Threat
- S(B)
- Vars
- Q(g);N_GUARD,XP(J)::QAB1(E)
- S(a);N_GUARD,XS(B)::P(G),XP(b)
- P(d);OGATEB,XP(J)::R(L)
- Q(g);N_GUARD::QAB1(E)
- S(i);S_CUTB(h)::P(G),XP(c)
- P(c);::S(B),XP(c)
- Refutation
- Q(g);XS(K)
- Try
- R(H);
- Threat
- S(B)
- Vars
- Q(g);N_GUARD,XP(J)::R1(L),XP(f)
- Q(g);N_GUARD,XS(K)::R1(L),XP(f)
- S(a);N_GUARD,XS(B)::P(G),XP(b)
- P(d);OGATEB,XP(J)::R(L)
- Q(g);N_GUARD::R1(L),XP(f)
- S(i);S_CUTB(h)::P(G),XP(c)
- P(c);::S(B),XP(c)
- Refutation
- Q(g);
- Try
- R(H);XP(c)
- Threat
- S(B)
- Vars
- S(a);N_GUARD,XS(B)::P(G),XP(b)
- P(d);OGATEB,XP(J)::R(L)
- Q(g);N_GUARD::QAB1(E)
- Refutation
- S(i);
- Try
- Q(E);CHECK
- Vars
- Q(g);P_SPINQ(g)::P(G),XP(c)
- Q(g);XQ(E)::R1(L),XP(f)
- S(i);XQ(E)::P(G),XP(c)
- Refutation
- B(h);XQ(E)
- Try
- Actual
- R(H);
- Threat
- S(B)
- Vars
- Q(g);N_GUARD,XS(K)::R1(L),XP(f)
- S(a);N_GUARD,XS(B)::P(G),XP(b)
- P(d);OGATEB,XP(J)::R(L)
- Q(g);N_GUARD::QAB1(E)
- S(i);S_CUTB(h)::P(G),XP(c)
- P(c);::S(B),XP(c)
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).