MESON Chess Problem Database
Problem Display
PID: 230749 (KB1R1b2/P7/7r/Np1PP1n1/pP1k1N2/4RP2/r3pP2/1bQn4 w - - 0 1)
Rieg, Hartmut
Deutsche Schachzeitung, 1970
#2
13 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxe2#
- 1...Rc2
- 2.Rd3#
- 1...Ra3
- 2.Sxe2#
- 1...Rh1
- 2.Sc6#
- 1...Rh2
- 2.Sc6#
- 1...Rh3
- 2.Sc6#
- 1...Rh4
- 2.Sc6#
- 1...Rh5
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qc5#
- 1...Rh7
- 2.Sc6#
- 1...Rh8
- 2.Sc6#
- 1...Bc2
- 2.Sxe2#
- 1...Bd3
- 2.Rxd3#
- 1...Bg6
- 2.Sc6#
- 1...Bc5
- 2.Qxc5#
- 1...Bd6
- 2.Sc6#
- 1...Bg7
- 2.Qc5#
- 1...Sb2
- 2.Sxe2#
- 2.Qc3#
- 1...Sxf2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sxe3
- 2.Qxe3#
- 2.fxe3#
- 1...Se6
- 2.Sc6#
- 1...a3
- 2.Sb3#
- 1...Ra1
- Tries
- 1.Se6+?
- 1...Sxe6
- 2.Sc6#
- 1...Rxe6!
- 1...Sxe6
- 1.Bd6?
- threat
- 2.Sc6#
- 2.Qc5#
- 1...Rxd6
- 2.Qc5#
- 1...Bxd6
- 2.Sc6#
- 1...Rc2
- 2.Rd3#
- 1...Sc3
- 2.Qxc3#
- 1...Se4
- 2.Sc6#
- 1...Se6
- 2.Sc6#
- 1...Bc2!
- threat
- 1.Rd6?
- threat
- 2.Sc6#
- 2.Qc5#
- 1...Rxd6
- 2.Qc5#
- 1...Bxd6
- 2.Sc6#
- 1...Sxe3
- 2.Sc6#
- 2.Qxe3#
- 1...Be4
- 2.Sc6#
- 1...Se4
- 2.Sc6#
- 1...Bc2
- 2.Sxe2#
- 1...Sc3
- 2.Qxc3#
- 1...Se6
- 2.Sc6#
- 1...Rc2!
- threat
- 1.Qb2+?
- 1...Sxb2
- 2.Sxe2#
- 1...Sc3
- 2.Sxe2#
- 2.Qxc3#
- 1...Rxb2!
- 1...Sxb2
- 1.Qd2+?
- 1...Bd3
- 2.Sxe2#
- 2.Rxd3#
- 2.Qxd3#
- 1...Rxd2!
- 1...Bd3
- 1.e6?
- threat
- 2.Sc6#
- 2.Be5#
- 1...Sxe3
- 2.Sc6#
- 2.Qxe3#
- 2.fxe3#
- 1...Sxf3
- 2.Sc6#
- 1...Bc2
- 2.Sxe2#
- 2.Be5#
- 1...Rc2
- 2.Be5#
- 2.Rd3#
- 1...Be4
- 2.Sc6#
- 1...Bd6
- 2.Sc6#
- 1...Bg7
- 2.Sc6#
- 2.Qc5#
- 1...Sc3
- 2.Be5#
- 2.Qxc3#
- 1...Se4
- 2.Sc6#
- 1...Sf7
- 2.Sc6#
- 1...Rxe6!
- threat
- 1.Se6+?
- Keys
- 1.Qc2!
- threat
- 2.Sxe2#
- 2.Rd3#
- 1...Rxc2
- 2.Rd3#
- 1...Bxc2
- 2.Sxe2#
- 1...Sxf2
- 2.Qc3#
- 1...Sxe3
- 2.Sxe2#
- 1...Sxf3
- 2.Sxe2#
- 2.Re4#
- 1...e1Q
- 2.Rd3#
- 1...e1S
- 2.Se2#
- 1...e1B
- 2.Se2#
- 2.Rd3#
- 1...e1R
- 2.Rd3#
- 1...Ra3
- 2.Sxe2#
- 1...Rd6
- 2.Qc5#
- 1...Bd6
- 2.Sc6#
- 1...Sb2
- 2.Sxe2#
- 2.Qc3#
- 1...Sc3
- 2.Rd3#
- 2.Qxc3#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 16
- Sets
- R(c);N_GUARD::S(F),XP(d)
- R(c);S_CUTB(a)::R1(C)
- R(i);N_GUARD::S(G)
- R(i);N_GUARD::S(G),XR(i)
- R(i);S_CUTB(j)::QAB1(A)
- B(a);S_CUTR(c)::S(F),XP(d)
- B(a);N_GUARD::R1(C),XB(a)
- B(a);S_CUTR(i)::S(G)
- B(j);N_GUARD::QAB1(A),XB(j)
- B(j);S_CUTR(i)::S(G)
- B(j);N_GUARD::QAB1(A)
- S(b);N_GUARD,XP(B)::QAB1(A)
- S(b);N_GUARD::QAB1(A),XS(b)
- S(h);S_CUTR(i)::S(G)
- P(e);N_GUARD::S(G)
- Tries
- Try
- S(F);CHECK
- Vars
- S(h);XS(F)::S(G)
- Refutation
- R(i);XS(F)
- Try
- B(L);
- Threat
- DUALS(2)
- Vars
- R(i);XB(L)::QAB1(A)
- B(j);XB(L)::S(G)
- R(c);S_CUTB(a)::R1(C)
- S(b);N_GUARD::QAB1(A),XS(b)
- S(h);::S(G)
- Refutation
- B(a);
- Try
- R(M);
- Threat
- DUALS(2)
- Vars
- R(i);XR(M)::QAB1(A)
- B(j);XR(M)::S(G)
- B(a);P_PINP(H)::S(G)
- S(h);::S(G)
- B(a);S_CUTR(c)::S(F),XP(d)
- S(b);N_GUARD::QAB1(A),XS(b)
- Refutation
- R(c);
- Try
- Q(A);CHECK
- Vars
- S(b);XQ(A)::S(F),XP(d)
- Refutation
- R(c);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- R(c);XQ(A)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- S(h);XP(D)::S(G)
- B(a);P_PINP(H)::S(G)
- B(j);::S(G)
- S(h);::S(G)
- Refutation
- R(i);XP(I)
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(A)::R1(C)
- B(a);XQ(A)::S(F),XP(d)
- S(b);N_GUARD,XP(B)::QAB1(A)
- S(b);XR(C)::S(F),XP(d)
- P(d);::R1(C)
- P(d);::S(F)
- R(c);::S(F),XP(d)
- R(i);S_CUTB(j)::QAB1(A)
- B(j);S_CUTR(i)::S(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).