MESON Chess Problem Database
Problem Display
PID: 175729 (1n6/8/p2p1NK1/B3kP2/1n2p2R/4rp2/2b2QPb/3R4 w - - 0 1)
Thomson, Robert Gavin
1st HM., Brighton Society, 1898
#2
8 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rc3
- 2.Qd4#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Qb2#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Sg4#
- 1...Sa2
- 2.Rd5#
- 1...Sd3
- 2.Bc3#
- 1...Sd5
- 2.Rxd5#
- 1...S4c6
- 2.Rd5#
- 1...S8c6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...fxg2
- 2.Sg4#
- 1...d5
- 2.Bc7#
- 1...Re1
- Tries
- 1.Bxb4?
- threat
- 2.Bxd6#
- 2.Rd5#
- 1...Bd3
- 2.Bc3#
- 2.Qb2#
- 1...Rd3
- 2.Rxe4#
- 1...Bb3
- 2.Bxd6#
- 1...d5
- 2.Rxd5#
- 1...Bxd1!
- threat
- 1.Qxe3?
- threat
- 2.Sg4#
- 2.Qd4#
- 2.Qc3#
- 1...Bxd1
- 2.Rxe4#
- 2.Qc3#
- 2.Qxe4#
- 1...d5
- 2.Bc7#
- 1...Bg1
- 2.Sg4#
- 2.Qf4#
- 1...Sa2
- 2.Sg4#
- 2.Rd5#
- 2.Qd4#
- 1...Sd3
- 2.Bc3#
- 2.Rxe4#
- 2.Qxe4#
- 1...Sd5
- 2.Sg4#
- 2.Rxd5#
- 2.Qd4#
- 1...S4c6
- 2.Sg4#
- 2.Rd5#
- 1...S8c6
- 2.Sg4#
- 2.Sd7#
- 1...Bd3!
- threat
- 1.Qd2?
- threat
- 2.Qd4#
- 2.Qxd6#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Qc3#
- 2.Qb2#
- 1...Sd3
- 2.Bc3#
- 2.Qc3#
- 1...d5
- 2.Bc7#
- 1...Sd5
- 2.Qd4#
- 2.Qxd5#
- 1...S4c6
- 2.Qd5#
- 2.Qxd6#
- 1...S8c6
- 2.Sd7#
- 2.Qxd6#
- 1...Bxd1!
- threat
- 1.gxf3?
- threat
- 2.Qxh2#
- 1...Rxf3
- 2.Qd4#
- 1...Bd3
- 2.Qb2#
- 1...Sd3
- 2.Bc3#
- 1...Re2
- 2.Qd4#
- 1...Rd3
- 2.Rxe4#
- 1...Bg1
- 2.Qg3#
- 2.f4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Sg4#
- 1...Sd5
- 2.Rxd5#
- 1...Bxd1!
- threat
- 1.g3?
- threat
- 2.Sg4#
- 1...Bxg3
- 2.Qxg3#
- 1...Bd3
- 2.Qb2#
- 1...Sd3
- 2.Bc3#
- 1...d5
- 2.Bc7#
- 1...Rd3
- 2.Rxe4#
- 1...Bxd1!
- threat
- 1.Bxb4?
- Keys
- 1.Rd3!
- 1...Rxd3
- 2.Rxe4#
- 1...Bxd3
- 2.Qb2#
- 1...Sxd3
- 2.Bc3#
- 1...fxg2
- 2.Sg4#
- 1...exd3
- 2.Qxe3#
- 1...d5
- 2.Bc7#
- 1...Re1
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Bb1
- 2.Qb2#
- 1...Bd1
- 2.Qb2#
- 1...Bb3
- 2.Qb2#
- 1...Ba4
- 2.Qb2#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Sg4#
- 1...Sa2
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...S4c6
- 2.Rd5#
- 1...S8c6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Rxd3
- 1.Rd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(c);OGATE::QAB1(B)
- R(c);N_GUARD,S_CUTB(a)::R1(D),XP(f)
- B(a);OGATE::QAB(B)
- B(b);N_GUARD::QAB(B)
- B(b);N_GUARD::QAB(B),XB(b)
- B(b);SBLOCK::S(G)
- S(e);N_GUARD::R1(A)
- S(e);OGATE::B(E)
- S(e);N_GUARD::R1(A),XS(e)
- S(j);N_GUARD::S(G)
- S(j);N_GUARD::S(G),XS(j)
- P(d);XP(C)::S(G)
- P(i);OGATEB::B(E)
- Tries
- Try
- B(E);XS(e)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,S_CUTB(a)::R1(D),XP(f)
- B(a);::B(E),XP(i)
- P(i);::R1(A),XP(i)
- Refutation
- B(a);XR(A)
- Try
- Q(B);P_PINP(f),XR(c)
- Threat
- DUALS(3)
- Vars
- P(i);OGATEB::B(E)
- Refutation
- B(a);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,S_CUTB(a)::R1(D),XP(f)
- P(i);OGATEB::B(E)
- Refutation
- B(a);XR(A)
- Try
- P(C);XP(d)
- Threat
- QAB(B),XB(b)
- Vars
- R(c);OGATE,XP(C)::QAB1(B)
- B(a);OGATE::QAB(B)
- S(e);OGATE::B(E)
- R(c);OGATE::QAB1(B)
- R(c);N_GUARD,S_CUTB(a)::R1(D),XP(f)
- B(b);N_GUARD::QAB(B),XB(b)
- B(b);SBLOCK::S(G)
- S(e);N_GUARD::R1(A),XS(e)
- Refutation
- B(a);XR(A)
- Try
- P(C);
- Threat
- S(G)
- Vars
- B(b);OGATE,XP(C)::QAB(B),XB(b)
- B(a);OGATE::QAB(B)
- S(e);OGATE::B(E)
- P(i);OGATEB::B(E)
- R(c);N_GUARD,S_CUTB(a)::R1(D),XP(f)
- Refutation
- B(a);XR(A)
- Try
- Actual
- R(A);
- Vars
- R(c);N_GUARD,XR(A)::R1(D),XP(f)
- B(a);OGATE,XR(A)::QAB(B)
- S(e);OGATE,XR(A)::B(E)
- P(d);XP(C)::S(G)
- P(f);OGATEB,XR(A)::QAR2(B),XR(c)
- P(i);OGATEB::B(E)
- R(c);OGATE::QAB1(B)
- B(a);OGATE::QAB(B)
- B(b);N_GUARD::QAB(B)
- B(b);N_GUARD::QAB(B),XB(b)
- B(b);SBLOCK::S(G)
- S(e);N_GUARD::R1(A)
- S(e);N_GUARD::R1(A),XS(e)
- S(j);N_GUARD::S(G)
- S(j);N_GUARD::S(G),XS(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).