MESON Chess Problem Database
Problem Display
PID: 151488 (3n4/1n2p3/2pRP1Kp/b7/N1BBkPN1/1p3R1r/6Pp/1b3r2 w - - 0 1)
Ahlheim, Karl-Heinz
Die Schwalbe, 1963
#2
10 + 12
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 1...Rh1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Ba2
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...Bc7
- 2.Sc3#
- 1...Sc5
- 2.Sxc5#
- 1...Rc1
- Tries
- 1.Ba1?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...c5
- 2.Bd5#
- 1...b2!
- threat
- 1.Bf2?
- threat
- 2.Rd4#
- 1...Rxf2
- 2.Sxf2#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...c5
- 2.Bd5#
- 1...Rd1!
- threat
- 1.Bc3?
- threat
- 2.Rd4#
- 1...Bxc3
- 2.Sxc3#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...c5
- 2.Bd5#
- 1...Bb6!
- threat
- 1.Be3?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...c5!
- threat
- 1.Bc5?
- threat
- 2.Rd4#
- 1...Sxc5
- 2.Sxc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Sxd6!
- threat
- 1.Be5?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...c5
- 2.Bd5#
- 1...Sxe6!
- threat
- 1.Bf6?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exf6
- 2.Sxf6#
- 1...c5
- 2.Bd5#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...exd6!
- threat
- 1.Bg7?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...c5
- 2.Bd5#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...exd6!
- threat
- 1.Bh8?
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...c5
- 2.Bd5#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...exd6!
- threat
- 1.Ba1?
- Keys
- 1.Bb2!
- threat
- 2.Rd4#
- 1...Sxd6
- 2.Sc5#
- 1...Sxe6
- 2.Rxe6#
- 1...exd6
- 2.Sf6#
- 1...Rd1
- 2.Sf2#
- 1...Bc3
- 2.Sxc3#
- 1...Bb6
- 2.Sc3#
- 1...c5
- 2.Bd5#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::S(G)
- R(b);N_GUARD::S(G),XR(b)
- B(a);N_GUARD::B(D)
- B(a);N_GUARD::B(D),XB(a)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(j);N_GUARD::S(C),XS(j)
- Tries
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- P(h);N_GUARD::B(D)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- R1(H)
- Vars
- R(b);XB(E)::S(G),XR(b)
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- P(h);N_GUARD::B(D)
- Refutation
- R(b);
- Try
- B(E);
- Threat
- R1(H)
- Vars
- B(g);XB(E)::S(C),XB(g)
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- P(h);N_GUARD::B(D)
- Refutation
- B(g);
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- Refutation
- P(h);
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);XB(E)::S(C),XS(j)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- Refutation
- S(j);XR(H)
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- P(h);N_GUARD::B(D)
- Refutation
- S(l);XP(I)
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);XB(E)::S(G),XP(k)
- P(h);N_GUARD::B(D)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- Refutation
- P(k);XR(H)
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(h);N_GUARD::B(D)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- Refutation
- P(k);XR(H)
- Try
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(h);N_GUARD::B(D)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- Refutation
- P(k);XR(H)
- Try
- Actual
- B(E);
- Threat
- R1(H)
- Vars
- S(j);N_GUARD,XR(H)::S(C)
- S(l);OGATE,XP(I)::R(H),XS(l)
- P(k);N_GUARD,XR(H)::S(G)
- R(b);N_GUARD::S(G)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- P(h);N_GUARD::B(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).