MESON Chess Problem Database
Problem Display
PID: 234872 (8/1r2PN2/B2p2p1/3PPkp1/2Rp2R1/b4P1n/4np1K/5N2 w - - 0 1)
Groth, Reinhard
Freie Presse, 1980
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Bc8#
- 1...Rb2
- 2.Bc8#
- 1...Rb3
- 2.Bc8#
- 1...Rb4
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Rb6
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Seg1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 1...Rb1
- Tries
- 1.Bxb7?
- threat
- 2.Bc8#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...dxe5!
- threat
- 1.Rc1?
- threat
- 2.Bd3#
- 1...Sxc1
- 2.Sg3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Rc2?
- threat
- 2.Bd3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Rc3?
- threat
- 2.Bd3#
- 1...Sxc3
- 2.Sg3#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Ra4?
- threat
- 2.Bd3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Rb4?
- threat
- 2.Bd3#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Rcxd4?
- threat
- 2.Se3#
- 2.Bd3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Se3#
- 2.Bc8#
- 1...Bc1
- 2.Bd3#
- 1...Sc1
- 2.Se3#
- 2.Sg3#
- 1...Sc3
- 2.Se3#
- 2.Sg3#
- 1...Sg3
- 2.Se3#
- 2.Sxg3#
- 1...Sef4
- 2.Se3#
- 2.Sg3#
- 1...Shf4
- 2.Se3#
- 2.Rxg5#
- 1...dxe5!
- threat
- 1.Rc5?
- threat
- 2.Bd3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.Rc7?
- threat
- 2.Bd3#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- 1...dxe5!
- threat
- 1.e8Q?
- threat
- 2.Sh6#
- 2.Qe6#
- 1...Rxf7
- 2.Qe6#
- 1...dxe5
- 2.Qxe5#
- 2.Qe6#
- 1...Sef4
- 2.Sg3#
- 2.Sh6#
- 1...Shf4
- 2.Sh6#
- 2.Rxg5#
- 1...Re7!
- threat
- 1.e8S?
- threat
- 2.Sg7#
- 1...dxe5
- 2.Sh6#
- 1...Rxf7!
- threat
- 1.Bxb7?
- Keys
- 1.Rc6!
- threat
- 2.Bd3#
- 1...dxe5
- 2.Sh6#
- 1...Rb3
- 2.Bc8#
- 1...Rb5
- 2.Bc8#
- 1...Sc1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sef4
- 2.Sg3#
- 1...Shf4
- 2.Rxg5#
- 1...d3
- 2.Se3#
- 2.Bxd3#
- threat
- 1.Rc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- P(e);N_GUARD::S(A)
- Tries
- Try
- B(H);XR(j)
- Threat
- B(H)
- Vars
- S(a);N_GUARD::S(A)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- S(a);N_GUARD,XR(D)::S(A)
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- S(a);N_GUARD,XR(D)::S(A)
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);XP(e)
- Threat
- DUALS(2)
- Vars
- R(j);OGATE::B(H)
- B(c);::B(H)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
- Refutation
- P(h);XP(G)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- R(j);XS(J)::QAB1(I)
- Refutation
- R(j);
- Try
- P(I);
- Threat
- S(I)
- Vars
- P(h);SBLOCK,XP(G)::S(J)
- Refutation
- R(j);XS(J)
- Try
- Actual
- R(D);
- Threat
- B(H)
- Vars
- P(h);SBLOCK,XP(G)::S(J)
- R(j);OGATE::B(H)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);N_GUARD,SBLOCK::R1(E),XP(g)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).