MESON Chess Problem Database
Problem Display
PID: 228919 (R5q1/1p2p2p/3Brrb1/n1Pp2Q1/3k4/4R1K1/1PpNP3/1n4NB w - - 0 1)
Monteiro da Silveira, Jose Luis
1st Prize, Xeque Mate, 1926
#2
11 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Rd3#
- 1...Re5
- 2.Qxe5#
- 1...Rf3+
- 2.Sgxf3#
- 1...Rf5
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...Bf5
- 2.Sgf3#
- 1...Bh5
- 2.Rd3#
- 1...Bf7
- 2.Rd3#
- 1...Be8
- 2.Rd3#
- 1...Sc3
- 2.bxc3#
- 1...Sb3
- 2.Ra4#
- 1...Sc4
- 2.Sb3#
- 1...Re4
- Tries
- 1.Sb3+?
- 1...Sxb3
- 2.Ra4#
- 1...Kc4!
- 1...Sxb3
- 1.Ra3?
- threat
- 2.Qxd5#
- 1...Re3+
- 2.Qxe3#
- 1...Rf3+
- 2.Sgxf3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxd6
- 2.Qe3#
- 1...Re4
- 2.Rd3#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4
- 2.e3#
- 1...Bf5
- 2.Sgf3#
- 1...Bh5
- 2.Rd3#
- 1...Bf7
- 2.Rd3#
- 1...Be8
- 2.Rd3#
- 1...Sc3
- 2.bxc3#
- 1...Sb3
- 2.R3a4#
- 2.R8a4#
- 1...Sxa3!
- threat
- 1.Rc3?
- threat
- 2.Qxd5#
- 1...Re3+
- 2.Qxe3#
- 1...Rf3+
- 2.Sgxf3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxd6
- 2.Qe3#
- 2.e3#
- 1...Re4
- 2.Rd3#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Rf5
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4
- 2.e3#
- 1...Bf5
- 2.Sgf3#
- 1...Bh5
- 2.Rd3#
- 1...Bf7
- 2.Rd3#
- 1...Be8
- 2.Rd3#
- 1...Sxc3!
- threat
- 1.Sb3+?
- Keys
- 1.Rb3!
- threat
- 2.Qxd5#
- 1...Re3+
- 2.Qxe3#
- 1...Rf3+
- 2.Sgxf3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxd6
- 2.Qe3#
- 1...Sxb3
- 2.Ra4#
- 1...Re4
- 2.Rd3#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4
- 2.e3#
- 1...Bf5
- 2.Sgf3#
- 1...Bh5
- 2.Rd3#
- 1...Bf7
- 2.Rd3#
- 1...Be8
- 2.Rd3#
- 1...Sc3
- 2.bxc3#
- threat
- 1.Rb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(f);S_CUTB(h)::R1(F)
- R(f);N_GUARD::QAB1(I),XR(f)
- R(g);CHECK,N_GUARD::S(A),XR(g)
- R(g);S_CUTB(h)::R1(F)
- B(h);N_GUARD,P_PINQ(I)::R1(F),XB(h)
- B(h);P_PINQ(I),S_CUTR(g)::S(A)
- B(h);N_GUARD,P_PINQ(I)::R1(F)
- S(a);OGATE::P(C),XS(a)
- S(d);OGATE::R(K)
- S(d);N_GUARD,SBLOCK::S(D)
- Tries
- Try
- S(D);CHECK
- Vars
- S(d);OGATE,XS(D)::R(K)
- Refutation
- K(c);P-FLIGHT
- Try
- R(F);
- Threat
- QAR1(I),XP(e)
- Vars
- R(f);CHECK,N_GUARD::QAB1(I),XR(f)
- R(g);CHECK,N_GUARD::S(A),XR(g)
- R(f);XP(E)::S(A),XR(f)
- R(f);N_GUARD,XB(J)::QAB1(I)
- R(f);S_CUTB(h)::R1(F)
- R(f);N_GUARD::QAB1(I),XR(f)
- R(g);S_CUTB(h)::R1(F)
- B(h);N_GUARD,P_PINQ(I)::R1(F),XB(h)
- B(h);P_PINQ(I),S_CUTR(f)::P(E)
- B(h);P_PINQ(I),S_CUTR(g)::S(A)
- B(h);N_GUARD,P_PINQ(I)::R1(F)
- S(a);OGATE::P(C),XS(a)
- Refutation
- S(a);XR(F)
- Try
- R(F);
- Threat
- QAR1(I),XP(e)
- Vars
- R(f);CHECK,N_GUARD::QAB1(I),XR(f)
- R(g);CHECK,N_GUARD::S(A),XR(g)
- R(f);XP(E)::S(A),XR(f)
- R(f);S_CUTB(h)::R1(F)
- R(g);S_CUTB(h)::R1(F)
- B(h);N_GUARD,P_PINQ(I)::R1(F),XB(h)
- B(h);P_PINQ(I),S_CUTR(f)::P(E)
- B(h);P_PINQ(I),S_CUTR(g)::S(A)
- B(h);N_GUARD,P_PINQ(I)::R1(F)
- Refutation
- S(a);XR(F)
- Try
- Actual
- R(F);
- Threat
- QAR1(I),XP(e)
- Vars
- R(f);CHECK,N_GUARD::QAB1(I),XR(f)
- R(g);CHECK,N_GUARD::S(A),XR(g)
- R(f);XP(E)::S(A),XR(f)
- R(f);N_GUARD,XB(J)::QAB1(I)
- S(d);OGATE,XR(F)::R(K)
- R(f);S_CUTB(h)::R1(F)
- R(f);N_GUARD::QAB1(I),XR(f)
- R(g);S_CUTB(h)::R1(F)
- B(h);N_GUARD,P_PINQ(I)::R1(F),XB(h)
- B(h);P_PINQ(I),S_CUTR(f)::P(E)
- B(h);P_PINQ(I),S_CUTR(g)::S(A)
- B(h);N_GUARD,P_PINQ(I)::R1(F)
- S(a);OGATE::P(C),XS(a)
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).