MESON Chess Problem Database
Problem Display
PID: 233166 (Bn4R1/2Pk1n2/b2Pp3/3N2NK/8/7Q/4r2B/br1R4 w - - 0 1)
Davidovich, Samuel
Freie Presse, 1975
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sb6#
- 2.cxb8S#
- 1...Rxd1
- 2.Sb6#
- 2.cxb8S#
- 1...Rbb2
- 2.Sf6#
- 1...Rb6
- 2.Sxb6#
- 1...Rb7
- 2.c8Q#
- 1...Ra2
- 2.Qxe6#
- 1...Reb2
- 2.Sf6#
- 2.Qxe6#
- 1...Rc2
- 2.Qxe6#
- 1...Rd2
- 2.Qxe6#
- 1...Rf2
- 2.Qxe6#
- 1...Rg2
- 2.Qxe6#
- 1...Re5
- 2.Sf6#
- 1...Bb2
- 2.Sb6#
- 2.cxb8S#
- 1...Be5
- 2.Qxe6#
- 1...Bf6
- 2.Sxf6#
- 1...Bd3
- 2.c8Q#
- 2.c8B#
- 1...Bc4
- 2.c8Q#
- 2.c8B#
- 1...Bb5
- 2.Sb6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bb7
- 2.cxb8S#
- 1...Se5
- 2.Sf6#
- 2.Rd8#
- 2.Qxe6#
- 1...Sxg5
- 2.Rd8#
- 1...Sxd6
- 2.Rd8#
- 1...Sh6
- 2.Rd8#
- 1...Sd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sh8
- 2.Rd8#
- 1...Rc1
- Tries
- 1.Bb7?
- threat
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rxd1
- 2.Sb6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rxb7
- 2.c8Q#
- 1...Bxb7
- 2.cxb8S#
- 1...Sxg5
- 2.Rd8#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Sxd6
- 2.Rd8#
- 2.cxb8S#
- 1...Re5
- 2.Sf6#
- 1...Be5
- 2.Qxe6#
- 1...Se5
- 2.Sf6#
- 2.Rd8#
- 2.Qxe6#
- 1...Rb3
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rc1
- 2.Sb6#
- 2.cxb8S#
- 1...Rbb2
- 2.Sf6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rb4
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rb5
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rb6
- 2.Sxb6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Re1
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Ra2
- 2.Qxe6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Reb2
- 2.Sf6#
- 2.Qxe6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rc2
- 2.Qxe6#
- 2.cxb8S#
- 1...Rd2
- 2.Qxe6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rf2
- 2.Qxe6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Rg2
- 2.Qxe6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Re3
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Re4
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bb2
- 2.Sb6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bc3
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bd4
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bf6
- 2.Sxf6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bg7
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bh8
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bd3
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bc4
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Bb5
- 2.Sb6#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Sh6
- 2.Rd8#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Sd8
- 2.Rxd8#
- 2.cxb8S#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8Q#
- 2.c8B#
- 1...Sh8
- 2.Rd8#
- 2.cxb8S#
- 2.c8Q#
- 2.c8B#
- 1...Sc6
- 2.c8Q#
- 2.c8B#
- 1...Rxh2!
- threat
- 1.Rd4?
- threat
- 2.Sf6#
- 1...Sxd6
- 2.Rd8#
- 1...Rb7
- 2.c8Q#
- 1...Bb7
- 2.cxb8S#
- 1...Sd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rf1
- 2.Sb6#
- 2.cxb8S#
- 1...Rf2
- 2.Qxe6#
- 1...Bxd4!
- threat
- 1.cxb8Q?
- threat
- 2.Qc7#
- 2.Qe8#
- 1...Rxh2
- 2.Qc7#
- 1...Sxd6
- 2.Rd8#
- 2.Qxd6#
- 2.Qc7#
- 2.Qd8#
- 1...Rb7
- 2.Qc8#
- 2.Qe8#
- 1...Rc1
- 2.Sb6#
- 2.Qe8#
- 1...Rc2
- 2.Qxe6#
- 2.Qe8#
- 1...Re5
- 2.Sf6#
- 2.Qc7#
- 1...Be5
- 2.Qxe6#
- 2.Qc7#
- 1...Bc8
- 2.Qc7#
- 2.Qxc8#
- 1...Se5
- 2.Sf6#
- 2.Rd8#
- 2.Qxe6#
- 2.Qc7#
- 2.Qd8#
- 1...Sd8
- 2.Rxd8#
- 2.Qc7#
- 2.Qxd8#
- 1...Rxb8!
- threat
- 1.Bb7?
- Keys
- 1.Be5!
- threat
- 2.Sf6#
- 2.Qxe6#
- 1...Rxe5
- 2.Sf6#
- 1...Bxe5
- 2.Qxe6#
- 1...Sxg5
- 2.Sf6#
- 2.Rd8#
- 1...Sxd6
- 2.Rd8#
- 2.Qxe6#
- 1...Rb7
- 2.c8Q#
- 1...Bb7
- 2.cxb8S#
- 1...Sd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rf2
- 2.Qxe6#
- 1...Rh2
- 2.Sf6#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(b);S_CUTB(a)::S(D)
- R(b);N_GUARD::S(D),XR(b)
- R(b);S_CUTB(d)::P=Q
- R(c);N_GUARD::QAB1(C),XP(e)
- R(c);P_PINS(E),S_CUTB(a)::S(D)
- B(a);S_CUTR(c)::QAB1(C),XP(e)
- B(a);N_GUARD::S(D),XB(a)
- B(d);N_GUARD::P=Q
- B(d);S_CUTR(b)::PXS(h)=S
- S(g);N_GUARD,XS(E)::R1(J)
- S(g);N_GUARD,XP(G)::R1(J)
- S(g);N_GUARD::R1(J)
- Tries
- Try
- B(I);
- Threat
- DUALS(3)
- Vars
- R(b);XB(I)::P=Q
- B(d);XB(I)::PXS(h)=S
- R(c);P_PINS(E),S_CUTB(a)::S(D)
- B(a);S_CUTR(c)::QAB1(C),XP(e)
- S(h);::P=Q
- Refutation
- R(c);P_PINQ(C),XB(B)
- Try
- R(A);
- Threat
- S(D)
- Vars
- S(g);N_GUARD,XP(G)::R1(J)
- R(b);S_CUTB(d)::P=Q
- B(d);S_CUTR(b)::PXS(h)=S
- R(c);N_GUARD::QAB1(C),XP(e)
- Refutation
- B(a);XR(A)
- Try
- P(H);XS(h)
- Threat
- DUALS(2)
- Vars
- R(c);P_PINQ(C),XB(B)::QAR1(H)
- Refutation
- R(b);XQ(H)
- Try
- Actual
- B(B);
- Threat
- DUALS(2)
- Vars
- R(c);P_PINS(E),XB(B)::S(D)
- B(a);XB(B)::QAB1(C),XP(e)
- R(b);S_CUTB(d)::P=Q
- B(d);S_CUTR(b)::PXS(h)=S
- R(c);::QAB1(C),XP(e)
- R(c);P_PINQ(C)::S(D)
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).