MESON Chess Problem Database
Problem Display
PID: 103122 (4B3/4p3/R4r2/1P1kNnr1/nK3p2/2P5/2p2N1b/4Q2b w - - 0 1)
Macs, Valdemar
Latvian Championship, 1955
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.c4#
- 1...f3
- 2.Qe4#
- 1...Rg2
- Tries
- 1.Sf3?
- threat
- 2.Qe4#
- 2.Qe5#
- 2.c4#
- 1...Rxa6
- 2.Qe5#
- 1...Sxc3
- 2.Qe5#
- 1...Rb6
- 2.Qe5#
- 1...Rc6
- 2.Qe5#
- 1...Sb6
- 2.Qe5#
- 1...c1Q
- 2.Qe4#
- 2.Qe5#
- 1...c1R
- 2.Qe4#
- 2.Qe5#
- 1...Re6
- 2.Qxe6#
- 2.c4#
- 1...Sb2
- 2.Qe4#
- 2.Qe5#
- 1...Sc5
- 2.Qe5#
- 2.c4#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 2.c4#
- 1...Sd4
- 2.Qe4#
- 2.c4#
- 1...Sh4
- 2.Qd2#
- 2.Qe4#
- 2.c4#
- 1...Sd6
- 2.Bc6#
- 1...Sh6
- 2.Qd2#
- 2.Qe4#
- 2.c4#
- 1...Sg7
- 2.Qd2#
- 2.Qe4#
- 2.c4#
- 1...e5
- 2.Qe4#
- 2.Qxe5#
- 2.c4#
- 1...Bxf3!
- threat
- 1.Sc4?
- threat
- 2.Qe5#
- 1...Re6
- 2.Qxe6#
- 1...Be4
- 2.Qxe4#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 1...Sh4
- 2.Qd2#
- 1...Sd6
- 2.Bc6#
- 1...Sh6
- 2.Qd2#
- 1...Sg7
- 2.Qd2#
- 1...f3
- 2.Qe4#
- 1...e5
- 2.Qxe5#
- 1...Sd4!
- threat
- 1.Seg4?
- threat
- 2.Qe5#
- 1...Re6
- 2.Qxe6#
- 1...Be4
- 2.Qxe4#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 1...Sd4
- 2.c4#
- 1...Sh4
- 2.Qd2#
- 1...Sd6
- 2.Bc6#
- 1...Sh6
- 2.Qd2#
- 1...Sg7
- 2.Qd2#
- 1...f3
- 2.Qe4#
- 1...e5
- 2.Sxf6#
- 2.Qxe5#
- 1...Rxg4!
- threat
- 1.Sd7?
- threat
- 2.Qe5#
- 1...Re6
- 2.Qxe6#
- 1...Be4
- 2.Qxe4#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 1...Sd4
- 2.c4#
- 1...Sh4
- 2.Qd2#
- 1...Sh6
- 2.Qd2#
- 1...Sg7
- 2.Qd2#
- 1...f3
- 2.Qe4#
- 1...e5
- 2.Sxf6#
- 2.Qxe5#
- 1...Sd6!
- threat
- 1.Qd2+?
- 1...Sd4
- 2.Qxd4#
- 1...Kxe5!
- 1...Sd4
- 1.Sf3?
- Keys
- 1.Sf7!
- threat
- 2.Qe5#
- 1...Rxf7
- 2.Qe6#
- 1...Re6
- 2.Qxe6#
- 1...Be4
- 2.Qxe4#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 1...Sd4
- 2.c4#
- 1...Sh4
- 2.Qd2#
- 1...Sd6
- 2.Bc6#
- 1...Sh6
- 2.Qd2#
- 1...Sg7
- 2.Qd2#
- 1...f3
- 2.Qe4#
- 1...e5
- 2.Qxe5#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- R(h);S_CUTB(a)::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(g);SBLOCK::P(C)
- P(e);S_CUTB(a)::QAB1(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(i);XR(G)::QAR1(A)
- S(d);XP(C)::QAR1(A)
- R(i);P_PINP(E)::QAR1(A)
- R(i);::QAR1(A)
- S(d);::QAR1(A)
- S(g);N_GUARD::QAR(A)
- S(g);SBLOCK,S_CUTR(i)::B(H)
- Refutation
- B(a);XS(F)
- Try
- S(F);
- Threat
- QAR1(A)
- Vars
- R(i);N_GUARD::QAB1(A),XR(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(g);N_GUARD::QAR(A)
- S(g);S_CUTR(i)::B(H)
- P(e);S_CUTB(a)::QAB1(A)
- P(j);::QAR1(A),XP(j)
- Refutation
- S(g);
- Try
- S(F);
- Threat
- QAR1(A)
- Vars
- R(i);N_GUARD::QAB1(A),XR(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(g);N_GUARD::QAR(A)
- S(g);SBLOCK::P(C)
- S(g);SBLOCK,S_CUTR(i)::B(H)
- P(e);S_CUTB(a)::QAB1(A)
- Refutation
- R(h);XS(F)
- Try
- S(F);
- Threat
- QAR1(A)
- Vars
- R(i);N_GUARD::QAB1(A),XR(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(g);N_GUARD::QAR(A)
- S(g);SBLOCK::P(C)
- P(e);S_CUTB(a)::QAB1(A)
- Refutation
- S(g);
- Try
- Q(A);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(A),XS(g)
- Refutation
- K(f);P-FLIGHT,XS(F)
- Try
- Actual
- S(F);
- Threat
- QAR1(A)
- Vars
- R(i);N_GUARD,XS(F)::QAB1(A)
- R(i);N_GUARD::QAB1(A),XR(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(g);N_GUARD::QAR(A)
- S(g);SBLOCK::P(C)
- S(g);S_CUTR(i)::B(H)
- P(e);S_CUTB(a)::QAB1(A)
- P(j);::QAR1(A),XP(j)
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).