MESON Chess Problem Database
Problem Display
PID: 108526 (8/3Q4/bn1B1N2/r7/3k4/1P4Nr/p1PP1n1b/K7 w - - 0 1)
Kapros, Jorge Marcelo
Ajedrez Postal Americano, 1976
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sf5#
- 1...Ra4
- 2.Sf5#
- 1...Rb5
- 2.Se2#
- 1...Rf5
- 2.Sxf5#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.c3#
- 1...Bb5
- 2.Sf5#
- 1...Bb7
- 2.Se2#
- 1...Bc8
- 2.Se2#
- 1...Sd1
- 2.Qg4#
- 1...Sh1
- 2.Qg4#
- 1...Sd3
- 2.Se2#
- 2.c3#
- 1...Sg4
- 2.Qxg4#
- 1...Sc4
- 2.Se2#
- 1...Sd5
- 2.Sf5#
- 1...Ra3
- Tries
- 1.Bc5+?
- 1...Ke5
- 2.Qf5#
- 2.Qd6#
- 1...Kxc5!
- 1...Ke5
- 1.Qa4+?
- 1...Rxa4
- 2.Sf5#
- 1...Bc4
- 2.Se2#
- 1...Sc4
- 2.Se2#
- 1...Sxa4!
- 1...Rxa4
- 1.Qg4+?
- 1...Se4
- 2.Qxe4#
- 1...Sxg4!
- 1...Se4
- 1.Qf5?
- threat
- 2.Qxf2#
- 2.c3#
- 1...Rxf5
- 2.Sxf5#
- 1...Bxg3
- 2.c3#
- 1...Rc5
- 2.Bxc5#
- 2.Qxf2#
- 2.Qxc5#
- 1...Re5
- 2.Qxe5#
- 2.c3#
- 1...Bg1
- 2.c3#
- 1...Sd1
- 2.Qe4#
- 2.Qg4#
- 2.Qf4#
- 1...Sh1
- 2.Qe4#
- 2.Qg4#
- 2.Qf4#
- 2.c3#
- 1...Sd3
- 2.Se2#
- 2.Qe4#
- 2.c3#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 2.Qxg4#
- 2.Qf4#
- 2.c3#
- 1...Sa4
- 2.Qxf2#
- 1...Sc4
- 2.Se2#
- 2.c3#
- 1...Sd5
- 2.Qe5#
- 1...Rxg3!
- threat
- 1.Qe6?
- threat
- 2.Qe3#
- 1...Re5
- 2.Qxe5#
- 1...Sd1
- 2.Qg4#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qxg4#
- 2.Qe4#
- 1...Sc4
- 2.Se2#
- 1...Sd5
- 2.Sf5#
- 2.Qe5#
- 1...Rxg3!
- threat
- 1.Qe8?
- threat
- 2.Qe3#
- 1...Re5
- 2.Qxe5#
- 1...Sd1
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 1...Sc4
- 2.Se2#
- 1...Sd5
- 2.Sf5#
- 2.Qe5#
- 1...Rxg3!
- threat
- 1.Qe7?
- threat
- 2.Qe3#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sd1
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 1...Sc4
- 2.Se2#
- 1...Sd5
- 2.Sf5#
- 2.Be5#
- 2.Qe5#
- 1...Rxg3!
- threat
- 1.Bc5+?
- Keys
- 1.Qb5!
- threat
- 2.Se2#
- 2.Sf5#
- 2.Be5#
- 2.c3#
- 1...Rxg3
- 2.Be5#
- 1...Rxb5
- 2.Se2#
- 1...Bxg3
- 2.c3#
- 1...Bxb5
- 2.Sf5#
- 1...Rh5
- 2.Se2#
- 2.c3#
- 1...Bc8
- 2.Se2#
- 2.Be5#
- 2.c3#
- 1...Sd1
- 2.Se2#
- 2.Sf5#
- 2.Be5#
- 1...Sd3
- 2.Se2#
- 2.Sf5#
- 2.c3#
- 1...Se4
- 2.Se2#
- 2.Sf5#
- 2.Be5#
- 1...Sg4
- 2.Se2#
- 2.Sf5#
- 2.c3#
- 1...Sa4
- 2.Se2#
- 2.Sf5#
- 2.Be5#
- 1...Sc4
- 2.Se2#
- 2.Sf5#
- 1...Sd5
- 2.Se2#
- 2.Sf5#
- 1...Sd7
- 2.Se2#
- 2.Sf5#
- 2.c3#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- R(f);N_GUARD::S(E)
- R(f);S_CUTB(g)::S(E)
- R(f);N_GUARD::S(E),XR(f)
- B(g);N_GUARD::S(E),XB(g)
- B(g);SBLOCK::P(B)
- B(g);S_CUTR(f)::S(E)
- B(g);N_GUARD::S(E)
- S(b);N_GUARD::QAR(H)
- S(b);N_GUARD::QAR(H),XS(b)
- S(h);S_CUTB(g)::S(E)
- S(h);S_CUTR(f)::S(E)
- Tries
- Try
- B(F);CHECK
- Refutation
- K(e);S_FLIGHT,XB(F)
- Try
- Q(H);CHECK
- Vars
- R(f);XQ(H)::S(E)
- B(g);P_SPINB(g)::S(E)
- S(h);P_SPINS(h)::S(E)
- Refutation
- S(h);XQ(H)
- Try
- Q(H);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR1(H),XS(b)
- Refutation
- S(b);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(f);XQ(H)::S(E),XR(f)
- B(c);XS(E)::P(B)
- B(c);::P(B)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(h);::QAB(H),XS(b)
- S(h);S_CUTR(f)::QAB1(H)
- Refutation
- R(d);XS(E)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(f);N_GUARD::QAB1(H),XR(f)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(h);S_CUTB(g)::S(E)
- Refutation
- R(d);XS(E)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(f);N_GUARD::QAB1(H),XR(f)
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(h);S_CUTB(g)::S(E)
- Refutation
- R(d);XS(E)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(h);S_CUTB(g)::S(E)
- Refutation
- R(d);XS(E)
- Try
- Actual
- Q(H);
- Threat
- DUALS(4)
- Vars
- R(d);XS(E)::B(F)
- R(f);XQ(H)::S(E)
- B(c);XS(E)::P(B)
- B(g);XQ(H)::S(E)
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).