MESON Chess Problem Database
Problem Display
PID: 202373 (4K3/8/1n2k1pb/1B2P2p/1p2PPpP/1np2NR1/1PR3N1/8 w - - 0 1)
Rosselli del Turco, Stefano
L'Italia Scacchistica, 1923
#2
11 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Sxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...Sa8
- 2.Bc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...g5
- 2.f5#
- 1...Bxf4
- Tries
- 1.Sge1?
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...Sa8
- 2.Bc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...Bxf4!
- 1...cxb2
- 1.Se3?
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 2.exd5#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...Sa8
- 2.Bc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...Bxf4!
- 1...cxb2
- 1.Bf1?
- 1...Bxf4
- 2.Sxf4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sd7
- 2.Bc4#
- 1...Sa8
- 2.Bc4#
- 1...Sc8
- 2.Bc4#
- 1...g5
- 2.f5#
- 1...Sd5!
- 1...Bxf4
- 1.Be2?
- 1...Bxf4
- 2.Sxf4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sd7
- 2.Bc4#
- 1...Sa8
- 2.Bc4#
- 1...Sc8
- 2.Bc4#
- 1...g5
- 2.f5#
- 1...Sd5!
- 1...Bxf4
- 1.Bd3?
- 1...Bxf4
- 2.Sxf4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sd7
- 2.Bc4#
- 1...Sa8
- 2.Bc4#
- 1...Sc8
- 2.Bc4#
- 1...g5
- 2.f5#
- 1...Sd5!
- 1...Bxf4
- 1.Ba4?
- 1...Bxf4
- 2.Sxf4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sc4
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bxb3#
- 2.Bxd7#
- 1...Sa8
- 2.Bxb3#
- 2.Bd7#
- 1...Sc8
- 2.Bxb3#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...Sxa4!
- 1...Bxf4
- 1.Bc4+?
- 1...Sd5
- 2.Bxd5#
- 1...Sxc4!
- 1...Sd5
- 1.Bc6?
- 1...Bxf4
- 2.Sxf4#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bd5#
- 2.Bd7#
- 1...Sc4
- 2.Bd5#
- 2.Bd7#
- 1...Sd5
- 2.Bxd5#
- 2.Bd7#
- 1...Sd7
- 2.Bd5#
- 2.Bxd7#
- 1...Sa8
- 2.Bd5#
- 2.Bd7#
- 1...Sc8
- 2.Bd5#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...cxb2!
- 1...Bxf4
- 1.Rc1?
- 1...Bxf4
- 2.Sxf4#
- 1...Sxc1
- 2.Sd4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...Sa8
- 2.Bc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...c2!
- 1...Bxf4
- 1.Rd2?
- threat
- 2.Rd6#
- 1...Sxd2
- 2.Sd4#
- 1...Bf8
- 2.Sg5#
- 1...Sd4
- 2.Sxd4#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...cxd2!
- threat
- 1.Rxc3?
- threat
- 2.Rc6#
- 1...Bf8
- 2.Sg5#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...bxc3!
- threat
- 1.Rxg4?
- threat
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...g5
- 2.f5#
- 1...hxg4!
- threat
- 1.bxc3?
- 1...Bxf4
- 2.Sxf4#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 2.Bd7#
- 1...Sd5
- 2.Bd7#
- 1...Sd7
- 2.Bc4#
- 2.Bxd7#
- 1...Sa8
- 2.Bc4#
- 2.Bd7#
- 1...Sc8
- 2.Bc4#
- 2.Bd7#
- 1...g5
- 2.f5#
- 1...bxc3!
- 1...Bxf4
- 1.Sge1?
- Keys
- 1.Ba6!
- 1...Bxf4
- 2.Sxf4#
- 1...cxb2
- 2.Rc6#
- 1...gxf3
- 2.Rxg6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sa1
- 2.Sd4#
- 1...Sc1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sa4
- 2.Bc4#
- 2.Bc8#
- 1...Sc4
- 2.Bxc4#
- 2.Bc8#
- 1...Sd5
- 2.Bc8#
- 1...Sd7
- 2.Bc4#
- 1...Sa8
- 2.Bc4#
- 2.Bc8#
- 1...Sc8
- 2.Bc4#
- 2.Bxc8#
- 1...g5
- 2.f5#
- 1...Bxf4
- 1.Ba6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(i);XP(G)::S(C),XB(i)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- P(h);N_GUARD::P(G)
- Tries
- Try
- S(C);
- Vars
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(G)
- Refutation
- B(i);XP(G)
- Try
- S(C);
- Vars
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- P(h);N_GUARD::P(G)
- Refutation
- B(i);XP(G)
- Try
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(h);N_GUARD::P(G)
- Refutation
- S(f);
- Try
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(h);N_GUARD::P(G)
- Refutation
- S(f);
- Try
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(h);N_GUARD::P(G)
- Refutation
- S(f);
- Try
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(G)
- Refutation
- S(f);XB(I)
- Try
- B(I);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::B(I),XS(f)
- Refutation
- S(f);XB(I)
- Try
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- P(h);N_GUARD::P(G)
- Refutation
- P(b);XP(A)
- Try
- R(B);
- Vars
- B(i);XP(G)::S(C),XB(i)
- S(a);N_GUARD,XR(B)::S(D)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(G)
- Refutation
- P(b);
- Try
- R(B);
- Threat
- R1(B)
- Vars
- S(a);N_GUARD,XR(B)::S(D)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- Refutation
- P(b);XR(B)
- Try
- R(B);XP(b)
- Threat
- R(B)
- Vars
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
- Refutation
- P(c);XR(B)
- Try
- R(E);XP(d)
- Threat
- R(E),XP(h)
- Vars
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(G)
- Refutation
- P(e);XR(E)
- Try
- P(A);XP(b)
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(G)
- Refutation
- P(c);XP(A)
- Try
- Actual
- B(I);
- Vars
- B(i);XP(G)::S(C),XB(i)
- P(b);OGATE,XP(A)::R(B)
- P(d);OGATE,XS(D)::R(E),XP(h)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(f);N_GUARD::B(I)
- P(h);N_GUARD::P(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).