MESON Chess Problem Database
Problem Display
PID: 265346 (1qNnK3/4pP2/3rRr2/1p2Nk2/Q4n1B/4P3/8/3b2R1 w - - 0 1)
Bottacchi, Antonio
L'Italia Scacchistica, 1950
#2
9 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rdxe6
- 2.Rg5#
- 2.Qxf4#
- 1...Rfxe6
- 2.Qxf4#
- 1...Se2
- 2.Qg4#
- 1...Rdxe6
- Tries
- 1.Sd3?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Kxe6
- 2.Qe4#
- 1...Rxd3
- 2.Qe4#
- 1...Rdxe6
- 2.Rg5#
- 1...Rfxe6
- 2.Qxf4#
- 1...Bxa4
- 2.Re5#
- 1...Sxd3
- 2.Qe4#
- 1...Sfxe6
- 2.Sxe7#
- 2.e4#
- 1...Sdxe6
- 2.e4#
- 1...Sxf7
- 2.Qe4#
- 1...bxa4
- 2.Re5#
- 1...Bg4
- 2.Qe4#
- 1...Sg2
- 2.Qe4#
- 1...Qb7
- 2.Re5#
- 1...Qa8
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qe4#
- 1...Rc6
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- 1...Bf3
- 2.Re5#
- 1...Sg6
- 2.Qe4#
- 1...Sc6
- 2.Qe4#
- 1...b4
- 2.Re5#
- 1...Rd4!
- threat
- 1.Sf3?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Kxe6
- 2.Qe4#
- 1...Rdxe6
- 2.Rg5#
- 1...Rfxe6
- 2.Qxf4#
- 1...Bxa4
- 2.Re5#
- 1...Sfxe6
- 2.Sxe7#
- 2.Qg4#
- 1...Sdxe6
- 2.e4#
- 1...Sxf7
- 2.Qe4#
- 1...bxa4
- 2.Re5#
- 1...Sg2
- 2.Qe4#
- 1...Qb7
- 2.Re5#
- 1...Qa8
- 2.Re5#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Qe4#
- 1...Ra6
- 2.Sd4#
- 2.Qe4#
- 1...Rb6
- 2.Sd4#
- 2.Qe4#
- 1...Rc6
- 2.Sd4#
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- 1...Bc2
- 2.Re5#
- 1...Sd3
- 2.Qe4#
- 2.Qg4#
- 1...Sg6
- 2.Qe4#
- 2.Qg4#
- 1...Sc6
- 2.Qe4#
- 1...b4
- 2.Re5#
- 1...Bxf3!
- threat
- 1.Sg6?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Kxe6
- 2.Qe4#
- 1...Rdxe6
- 2.Rg5#
- 1...Rfxe6
- 2.Qxf4#
- 1...Rxg6
- 2.Qe4#
- 1...Bxa4
- 2.Re5#
- 1...Sfxe6
- 2.Scxe7#
- 2.e4#
- 1...Sxg6
- 2.Qe4#
- 1...Sdxe6
- 2.e4#
- 1...Sxf7
- 2.Qe4#
- 1...bxa4
- 2.Re5#
- 1...Bg4
- 2.Qe4#
- 1...Sg2
- 2.Qe4#
- 1...Qb7
- 2.Re5#
- 1...Qa8
- 2.Re5#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qe4#
- 1...Rc6
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- 1...Bc2
- 2.Re5#
- 1...Bf3
- 2.Re5#
- 1...Sd3
- 2.Qe4#
- 1...Sc6
- 2.Qe4#
- 1...b4
- 2.Re5#
- 1...Rd4!
- threat
- 1.Sd7?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Kxe6
- 2.Qe4#
- 1...Rdxe6
- 2.Rg5#
- 1...Rxd7
- 2.Qe4#
- 1...Rfxe6
- 2.Rg5#
- 2.Qxf4#
- 1...Bxa4
- 2.Re5#
- 1...Sfxe6
- 2.Sxe7#
- 1...Sdxe6
- 2.e4#
- 1...Sxf7
- 2.Qe4#
- 1...bxa4
- 2.Re5#
- 1...Bg4
- 2.Qe4#
- 1...Sg2
- 2.Qe4#
- 1...Qb7
- 2.Re5#
- 1...Qa8
- 2.Re5#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qe4#
- 1...Rc6
- 2.Qe4#
- 1...Bc2
- 2.Re5#
- 1...Bf3
- 2.Re5#
- 1...Sd3
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...Sc6
- 2.Qe4#
- 1...b4
- 2.Re5#
- 1...Rd4!
- threat
- 1.Qe4+?
- 1...Kxe6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Kxe4!
- 1...Kxe6
- 1.Sd3?
- Keys
- 1.Sc6!
- threat
- 2.Re5#
- 2.Qe4#
- 1...Kxe6
- 2.Qe4#
- 1...Rxc6
- 2.Qe4#
- 1...Rdxe6
- 2.Rg5#
- 1...Rfxe6
- 2.Qxf4#
- 1...Bxa4
- 2.Re5#
- 1...Sfxe6
- 2.S8xe7#
- 1...Sxc6
- 2.Qe4#
- 1...Sdxe6
- 2.e4#
- 1...Sxf7
- 2.Qe4#
- 1...bxa4
- 2.Re5#
- 1...Bg4
- 2.Qe4#
- 1...Sg2
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- 1...Bc2
- 2.Re5#
- 1...Bf3
- 2.Re5#
- 1...Sd3
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...b4
- 2.Re5#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 21
- REMOVED MATES = 1
- Sets
- R(f);SBLOCK,XR(F)::QAR1(C),XS(b)
- S(b);OGATE::QAB1(C)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(F)::QAR2(C)
- R(e);XS(E)::QAB1(C)
- R(e);SBLOCK,XR(F)::R1(A)
- R(f);SBLOCK,XR(F)::QAR1(C),XS(b)
- B(a);XQ(C)::R1(F)
- S(b);XS(E)::QAB1(C)
- S(i);P_PINS(H),SBLOCK,XR(F)::P(B)
- S(i);P_PINS(H),XP(G)::QAB1(C)
- P(c);XQ(C)::R1(F)
- B(a);::QAB1(C)
- S(b);::QAB1(C)
- Q(h);::R1(F)
- R(e);::QAB1(C)
- B(a);::R1(F)
- S(i);P_PINS(H)::QAB1(C)
- P(c);::R1(F)
- Refutation
- R(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(F)::QAR2(C)
- R(e);SBLOCK,XR(F)::R1(A)
- R(f);SBLOCK,XR(F)::QAR1(C),XS(b)
- B(a);XQ(C)::R1(F)
- S(i);P_PINS(H),SBLOCK,XR(F)::P(B)
- S(i);P_PINS(H),XP(G)::QAB1(C)
- P(c);XQ(C)::R1(F)
- S(b);::QAB1(C)
- Q(h);::R1(F)
- R(e);::QAB1(C)
- R(e);N_GUARD::S(E),XR(e)
- B(a);::R1(F)
- S(i);P_PINS(H)::QAB1(C)
- P(c);::R1(F)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(F)::QAR2(C)
- R(e);SBLOCK,XR(F)::R1(A)
- R(f);SBLOCK,XR(F)::QAR1(C),XS(b)
- R(f);XS(E)::QAB1(C)
- B(a);XQ(C)::R1(F)
- S(b);XS(E)::QAB1(C)
- S(i);P_PINS(H),SBLOCK,XR(F)::P(B)
- S(i);P_PINS(H),XP(G)::QAB1(C)
- P(c);XQ(C)::R1(F)
- B(a);::QAB1(C)
- S(b);::QAB1(C)
- Q(h);::R1(F)
- R(e);::QAB1(C)
- B(a);::R1(F)
- S(i);P_PINS(H)::QAB1(C)
- P(c);::R1(F)
- Refutation
- R(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(F)::QAR2(C)
- R(e);SBLOCK,XR(F)::R1(A)
- R(e);XS(E)::QAB1(C)
- B(a);XQ(C)::R1(F)
- S(b);SBLOCK,XR(F)::S(H),XP(g)
- S(i);P_PINS(H),SBLOCK,XR(F)::P(B)
- S(i);P_PINS(H),XP(G)::QAB1(C)
- P(c);XQ(C)::R1(F)
- B(a);::QAB1(C)
- S(b);::QAB1(C)
- Q(h);::R1(F)
- R(e);::QAB1(C)
- B(a);::R1(F)
- S(i);P_PINS(H)::QAB1(C)
- P(c);::R1(F)
- Refutation
- R(e);
- Try
- Q(C);CHECK
- Refutation
- K(d);S_FLIGHT,XQ(C)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(F)::QAR2(C)
- R(e);XS(E)::QAB1(C)
- R(e);SBLOCK,XR(F)::R1(A)
- R(f);SBLOCK,XR(F)::QAR1(C),XS(b)
- B(a);XQ(C)::R1(F)
- S(b);SBLOCK,XR(F)::S(H),XP(g)
- S(i);P_PINS(H),XS(E)::QAB1(C)
- S(i);P_PINS(H),SBLOCK,XR(F)::P(B)
- S(i);P_PINS(H),XP(G)::QAB1(C)
- P(c);XQ(C)::R1(F)
- B(a);::QAB1(C)
- S(b);::QAB1(C)
- R(e);::QAB1(C)
- R(e);N_GUARD::S(E),XR(e)
- B(a);::R1(F)
- P(c);::R1(F)
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).