MESON Chess Problem Database
Problem Display
PID: 246698 (4R3/pb4p1/2p5/2Pk4/1P3Pn1/1pKN2p1/B2N3b/n2R4 w - - 0 1)
Petite, Efren
El Ajedrez Espanol, 1962
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...Sh6
- 2.Re5#
- 1...Sc2
- Tries
- 1.Sb1?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sf2#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Sxf2#
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Ba6!
- threat
- 1.Sf1?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sf2#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Se3#
- 2.Sxf2#
- 2.Re5#
- 1...Se3
- 2.Sxe3#
- 2.Re5#
- 1...Ba6!
- threat
- 1.Sxb3?
- threat
- 2.Sxa1#
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 1...Sxb3
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Bxb3#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sxa1#
- 2.Sf2#
- 1...Sc2
- 2.Sa1#
- 2.Sbc1#
- 2.Sd2#
- 2.Sd4#
- 2.Sa5#
- 1...Sf2
- 2.Sxa1#
- 2.Sxf2#
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Ba6!
- threat
- 1.Sf3?
- threat
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sf2#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Sxf2#
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Ba6!
- threat
- 1.Sc4?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sdb2#
- 2.Sf2#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 2.Se3#
- 2.Re5#
- 1...Se3
- 2.Sxe3#
- 2.Re5#
- 1...b2
- 2.Sc1#
- 2.Se1#
- 2.Sdxb2#
- 2.Sf2#
- 2.Se3#
- 2.Sb6#
- 1...Sc2!
- threat
- 1.Se4?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sdf2#
- 1...Se5
- 2.Rxe5#
- 1...Bg1
- 2.Sdf2#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Sdxf2#
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Ba6!
- threat
- 1.Sc1?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sdxb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...bxa2
- 2.Sb1#
- 2.Sf1#
- 2.Sdb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Ba6
- 2.Sc4#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Bg1!
- threat
- 1.Se1?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sxb3#
- 2.Sdf3#
- 2.Sc4#
- 2.Se4#
- 1...bxa2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sdf3#
- 2.Sc4#
- 2.Se4#
- 1...Ba6
- 2.Sc4#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Bg1!
- threat
- 1.Sb2?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sxb3#
- 2.Sf3#
- 2.Sdc4#
- 2.Se4#
- 1...bxa2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sdc4#
- 2.Se4#
- 1...Ba6
- 2.Sdc4#
- 1...Sc2
- 2.Bxb3#
- 1...Sf2
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Bg1!
- threat
- 1.Rde1?
- threat
- 2.Rd8#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.R1xe5#
- 2.R8xe5#
- 1...Sf6
- 2.R1e5#
- 2.R8e5#
- 1...Bc8!
- threat
- 1.f5?
- threat
- 2.Sf4#
- 2.Rd8#
- 1...Bc8
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 2.Rxe5#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...g5
- 2.Rd8#
- 1...g2!
- threat
- 1.Sb1?
- Keys
- 1.Sf2!
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sxb3#
- 2.Sf3#
- 2.Sc4#
- 2.Sde4#
- 1...Sxf2
- 2.Re5#
- 1...bxa2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Sde4#
- 1...Ba6
- 2.Sc4#
- 1...Sc2
- 2.Bxb3#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(e)
- Tries
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- B(b);::R(A)+S(E)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- B(b);::R(A)+S(E)
- S(a);N_GUARD::B(B),XP(c)
- Refutation
- B(i);
- Try
- S(C);XP(c)
- Threat
- DUALS(5)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- S(e);N_GUARD::R1(I)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- B(b);::R(A)+S(E)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- Refutation
- B(i);
- Try
- S(C);N_PINP(c)
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- B(b);::R(A)+S(E)
- Refutation
- S(a);
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- B(b);::R(A)+S(E)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- Refutation
- B(i);
- Try
- S(E);
- Threat
- DUALS(6)
- Vars
- B(i);::R(A)+S(C)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(e)
- Refutation
- B(b);
- Try
- S(E);
- Threat
- DUALS(6)
- Vars
- B(i);::R(A)+S(C)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(e)
- Refutation
- B(b);
- Try
- S(E);
- Threat
- DUALS(6)
- Vars
- B(i);::R(A)+S(C)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(e)
- Refutation
- B(b);
- Try
- R(A);
- Threat
- R(I)
- Vars
- S(e);N_GUARD::R1(I)
- Refutation
- B(i);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- B(i);::S(E)
- P(j);::R(I)
- Refutation
- P(d);
- Try
- Actual
- S(E);
- Threat
- DUALS(6)
- Vars
- S(e);N_GUARD,XS(E)::R1(I)
- B(i);::R(A)+S(C)
- S(a);N_GUARD::B(B),XP(c)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(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).