MESON Chess Problem Database
Problem Display
PID: 109708 (3b1q2/4pN2/4P1Q1/n1R5/1PPk3r/r2N4/3P1Pnp/1B5K w - - 0 1)
Wielgos, Oskar
El Ajedrez Espanol, 1963
#2
11 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Qxd3#
- 1...Se3
- 2.fxe3#
- 1...Rxd3
- Tries
- 1.Sc1?
- threat
- 2.Se2#
- 1...Re4
- 2.Qxe4#
- 1...Sf4
- 2.Qe4#
- 1...Re3!
- threat
- 1.Sfe5?
- threat
- 2.Rd5#
- 1...Sxc4
- 2.Sc6#
- 1...Qf3
- 2.Sxf3#
- 1...Se3
- 2.fxe3#
- 1...Sf4
- 2.Sf3#
- 1...Qf5!
- threat
- 1.Qf5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Sxc4
- 2.Rd5#
- 2.Qd5#
- 1...Qg7
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Bc7
- 2.Qd5#
- 1...Se3
- 2.Qe5#
- 2.fxe3#
- 1...Sf4
- 2.Qe5#
- 1...Sc6
- 2.Qd5#
- 1...Rh5!
- threat
- 1.Qh5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Ke4
- 2.Qd5#
- 1...Sxc4
- 2.Qd5#
- 1...Qg7
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Bc7
- 2.Qd5#
- 1...Se3
- 2.Qe5#
- 1...Sf4
- 2.Qe5#
- 1...Sc6
- 2.Qd5#
- 1...Rxh5!
- threat
- 1.Qxg2?
- threat
- 2.Qd5#
- 1...Rh5
- 2.Qg4#
- 1...Re4!
- threat
- 1.Qg5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Ke4
- 2.Qd5#
- 1...Sxc4
- 2.Qd5#
- 1...Qg7
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Bc7
- 2.Qd5#
- 1...Se3
- 2.Qxe3#
- 2.Qe5#
- 1...Sf4
- 2.Qe5#
- 1...Sc6
- 2.Qd5#
- 1...Rh5!
- threat
- 1.Qf6+?
- 1...Ke4
- 2.Sg5#
- 2.f3#
- 1...exf6!
- 1...Ke4
- 1.Qg7+?
- 1...Ke4
- 2.Sg5#
- 1...Qxg7!
- 1...Ke4
- 1.Sc1?
- Keys
- 1.Sde5!
- threat
- 2.Rd5#
- 1...Sxc4
- 2.Sc6#
- 1...Se3
- 2.Sf3#
- 1...Sf4
- 2.Qe4#
- threat
- 1.Sde5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(c);OGATE,XS(E)::QAR1(J),XR(c)
- S(a);OGATE::P(D),XS(a)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- R(e);N_GUARD::QAR1(J),XR(e)
- S(a);S_CUTR(e)::QAR1(J)
- Refutation
- R(c);
- Try
- S(K);
- Threat
- R1(H)
- Vars
- S(f);N_GUARD,XP(G)::S(K)
- Q(i);N_GUARD::S(K),XQ(i)
- S(a);OGATE::P(D),XS(a)
- S(a);S_CUTQ(i)::S(K)
- Refutation
- Q(i);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(i);::QAR1(J)
- R(e);::QAR1(J)
- B(h);::QAR1(J)
- S(a);::QAB1(J)
- S(f);::QAR1(J)
- Refutation
- R(e);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT::QAB1(J)
- S(f);XP(G)::QAR1(J)
- Q(i);::QAR1(J)
- R(e);::QAR1(J)
- B(h);::QAR1(J)
- S(a);::QAB1(J)
- S(f);::QAR1(J)
- Refutation
- R(e);XQ(J)
- Try
- Q(J);XS(a)
- Threat
- QAR1(J)
- Vars
- R(e);N_GUARD::QAR(J)
- Refutation
- R(e);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT::QAB1(J)
- S(f);XP(G)::QAR1(J)
- Q(i);::QAR1(J)
- R(e);::QAR1(J)
- B(h);::QAR1(J)
- S(a);::QAB1(J)
- S(f);::QAR1(J)
- Refutation
- R(e);
- Try
- Q(J);CHECK
- Refutation
- P(g);XQ(J)
- Try
- Q(J);CHECK
- Vars
- K(d);P-FLIGHT::S(K)
- Refutation
- Q(i);XQ(J)
- Try
- Actual
- S(E);
- Threat
- R1(H)
- Vars
- S(f);N_GUARD,XP(G)::S(E)
- S(a);S_CUTR(c)::S(E)
- S(a);S_CUTR(e)::QAR1(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).