MESON Chess Problem Database
Problem Display
PID: 245188 (2R5/1K2RN1B/8/2Bkp3/2p5/2prbn2/N1n1P3/8 w - - 0 1)
Petite, Efren
Scacchi e Scienze Applicate, 1990
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sfe1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Rd1
- Tries
- 1.Ka6?
- 1...Sb4+
- 2.Sxb4#
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Scd4
- 2.Sb4#
- 1...Sfe1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Sb4+
- 1.Ka7?
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sfe1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5+!
- 1...Rd1
- 1.Ka8?
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sfe1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Rd1
- 1.Kb8?
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sfe1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Rd1
- 1.Sd8?
- threat
- 2.Rd7#
- 1...e4
- 2.Bxe4#
- 2.Bg8#
- 1...Bxc5!
- threat
- 1.Bg6?
- 1...Sfe1
- 2.Rxe5#
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Sfe1
- 1.Ree8?
- 1...Sfe1
- 2.Rxe5#
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Sfe1
- 1.Rcc7?
- 1...Sfe1
- 2.Rxe5#
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.e4#
- 1...Bh6
- 2.e4#
- 1...Sa1
- 2.Sb4#
- 1...Sce1
- 2.Sb4#
- 1...Sa3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Scd4
- 2.Sb4#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...e4
- 2.Bxe4#
- 1...Bxc5!
- 1...Sfe1
- 1.exf3?
- threat
- 2.Be4#
- 2.Rxe5#
- 1...Rd4
- 2.Sxc3#
- 2.Rxe5#
- 1...Bd4
- 2.Be4#
- 1...Bf4
- 2.Be4#
- 1...e4
- 2.Bxe4#
- 2.Re5#
- 2.fxe4#
- 1...Bxc5!
- threat
- 1.Ka6?
- Keys
- 1.Bd4!
- threat
- 2.Rd8#
- 1...Kxd4
- 2.Rd7#
- 1...Rxd4
- 2.Sxc3#
- 1...Bxd4
- 2.e4#
- 1...Scxd4
- 2.Sb4#
- 1...Sfxd4
- 2.Rxe5#
- 1...exd4
- 2.Be4#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 20
- Sets
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD::R1(E),XP(h)
- P(h);::B(G),XP(h)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(A),XS(a)
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(e);N_GUARD::R1(E),XP(h)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- K(D);P-FLIGHT,P_SPINB(C)
- Vars
- R(c);N_GUARD::S(A),XP(b)
- R(c);N_GUARD,N_PINB(C)::S(A),XP(b)
- B(d);N_PINB(C)::P(B)
- B(d);::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD,N_PINB(C)::S(A)
- S(e);N_GUARD::R1(E),XP(h)
- S(e);N_GUARD,N_PINB(C)::R1(E),XP(h)
- P(h);::B(G),XP(h)
- Refutation
- B(d);CHECK,XB(C)
- Try
- K(D);S_FLIGHT
- Vars
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD::R1(E),XP(h)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- K(D);P-FLIGHT
- Vars
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD::R1(E),XP(h)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- S(F);
- Threat
- R(E)
- Refutation
- B(d);XB(C)
- Try
- B(G);
- Vars
- S(e);N_GUARD::R1(E),XP(h)
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- R(E);
- Vars
- S(e);N_GUARD::R1(E),XP(h)
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- R(H);
- Vars
- S(e);N_GUARD::R1(E),XP(h)
- R(c);N_GUARD::S(A),XP(b)
- B(d);OGATE::P(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(h);::B(G),XP(h)
- Refutation
- B(d);XB(C)
- Try
- P(B);XS(e)
- Threat
- DUALS(2)
- Vars
- B(d);::B(G)
- Refutation
- B(d);XB(C)
- Try
- Actual
- B(C);
- Threat
- R(H)
- Vars
- K(g);P-FLIGHT,XB(C)::R(E)
- R(c);N_GUARD,SBLOCK,XB(C)::S(A),XP(b)
- B(d);OGATE,SBLOCK,XB(C)::P(B)
- S(a);N_GUARD,SBLOCK,XB(C)::S(A)
- S(e);N_GUARD,SBLOCK,XB(C)::R1(E),XP(h)
- P(h);SBLOCK,XB(C)::B(G)
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).