MESON Chess Problem Database
Problem Display
PID: 272256 (2r5/Q2R1p1B/8/2r1B2K/1n6/4kN1N/2R1p1P1/4b3 w - - 0 1)
Simoni, Francesco
L'Italia Scacchistica, 1993
#2
9 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.Qxc5#
- 1...Rb8
- 2.Qxc5#
- 1...Rd8
- 2.Qxc5#
- 1...Re8
- 2.Qxc5#
- 1...Rf8
- 2.Qxc5#
- 1...Rg8
- 2.Qxc5#
- 1...Rh8
- 2.Qxc5#
- 1...Sa2
- 2.Rd3#
- 1...Sxc2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sd5
- 2.Bd4#
- 1...Sa6
- 2.Rd3#
- 1...Sc6
- 2.Rd3#
- 1...Ra8
- Tries
- 1.Sfg1?
- threat
- 2.Rxe2#
- 1...Sxc2
- 2.Rd3#
- 1...Bd2!
- threat
- 1.Sd2?
- threat
- 2.Sc4#
- 1...f5
- 2.Bf4#
- 1...Bxd2!
- threat
- 1.Sh2?
- threat
- 2.Sg4#
- 1...Rg8
- 2.Qxc5#
- 1...f5!
- threat
- 1.Sfg5?
- threat
- 2.Bd4#
- 2.Bf4#
- 1...Sxc2
- 2.Bf4#
- 2.Rd3#
- 1...Bc3
- 2.Bf4#
- 1...Bg3
- 2.Bd4#
- 1...Sd3
- 2.Bd4#
- 2.Rxd3#
- 1...Sc6
- 2.Bf4#
- 2.Rd3#
- 1...f5
- 2.Bf4#
- 1...Sd5!
- threat
- 1.Bf5?
- threat
- 2.Bd4#
- 2.Bf4#
- 1...Sxc2
- 2.Bf4#
- 2.Rd3#
- 1...Bc3
- 2.Bf4#
- 1...Bg3
- 2.Bd4#
- 1...Sd3
- 2.Bd4#
- 2.Rxd3#
- 1...Sd5
- 2.Bd4#
- 1...Sc6
- 2.Bf4#
- 2.Rd3#
- 1...Rh8+!
- threat
- 1.Rc3+?
- 1...Sd3
- 2.Rcxd3#
- 2.Rdxd3#
- 1...Bxc3!
- 1...Sd3
- 1.Rxc5?
- threat
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 2.Rc6#
- 2.Rcc7#
- 2.Rxc8#
- 1...Rxc5
- 2.Qxc5#
- 1...Rc6
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 2.Rxc6#
- 1...Rc7
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 2.Rcxc7#
- 1...Ra8
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 1...Rb8
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 1...Rd8
- 2.Bd4#
- 2.Bf4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rc6#
- 2.Rcc7#
- 2.Rc8#
- 1...Re8
- 2.Bd4#
- 2.Bf4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rc6#
- 2.Rcc7#
- 2.Rc8#
- 1...Rf8
- 2.Bd4#
- 2.Bf4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rc6#
- 2.Rcc7#
- 2.Rc8#
- 1...Rg8
- 2.Bd4#
- 2.Bf4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rc6#
- 2.Rcc7#
- 2.Rc8#
- 1...Rh8
- 2.Bd4#
- 2.Bf4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rc6#
- 2.Rcc7#
- 2.Rc8#
- 1...Bc3
- 2.Bf4#
- 2.Rxc3#
- 1...Bg3
- 2.Bd4#
- 2.Rc3#
- 2.Rc6#
- 2.Rcc7#
- 2.Rxc8#
- 1...Sc2
- 2.Bf4#
- 2.Rc3#
- 2.Rd3#
- 1...Sd3
- 2.Bd4#
- 2.Rxd3#
- 1...Sd5
- 2.Bd4#
- 2.Rc3#
- 1...Sa6
- 2.Bd4#
- 2.Bf4#
- 2.Rc3#
- 2.Rd3#
- 1...Sc6
- 2.Bf4#
- 2.Rc3#
- 2.Rxc6#
- 2.Rd3#
- 1...f5!
- threat
- 1.Rd5?
- threat
- 2.Bd4#
- 2.Bf4#
- 1...Sxc2
- 2.Bf4#
- 2.Rd3#
- 1...Sxd5
- 2.Bd4#
- 1...Bc3
- 2.Bf4#
- 1...Bg3
- 2.Bd4#
- 1...Sd3
- 2.Bd4#
- 2.Rxd3#
- 1...Sc6
- 2.Bf4#
- 2.Rd3#
- 1...f5!
- threat
- 1.Qa3+?
- 1...Rc3
- 2.Bd4#
- 2.Bf4#
- 1...Sd3
- 2.Rxd3#
- 2.Qxd3#
- 1...Bc3!
- 1...Rc3
- 1.Sfg1?
- Keys
- 1.Rc4!
- threat
- 2.Re4#
- 1...Sd5
- 2.Bd4#
- 1...f5
- 2.Bf4#
- threat
- 1.Rc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- R(g);N_GUARD::QAB(G),XR(e)
- S(d);N_GUARD::R1(H)
- S(d);N_GUARD,XR(A)::R1(H)
- S(d);N_GUARD::R1(H),XS(d)
- S(d);N_PINB(E)::B(E)
- Tries
- Try
- S(C);
- Threat
- R1(A),XP(b)
- Vars
- S(d);N_GUARD,XR(A)::R1(H)
- Refutation
- B(a);
- Try
- S(C);
- Threat
- S(C)
- Vars
- P(f);N_PINB(E)::B(E)
- Refutation
- B(a);XS(C)
- Try
- S(C);
- Threat
- S(C)
- Vars
- R(g);N_GUARD::QAB(G),XR(e)
- Refutation
- P(f);N_PINB(E)
- Try
- S(C);N_SPINB(E)
- Threat
- DUALS(2)
- Vars
- B(a);::B(E)
- P(f);::B(E)
- Refutation
- S(d);
- Try
- B(I);N_SPINB(E)
- Threat
- DUALS(2)
- Vars
- B(a);::B(E)
- S(d);::B(E)
- Refutation
- R(g);CHECK
- Try
- R(A);CHECK
- Refutation
- B(a);XR(A)
- Try
- R(A);N_SPINB(E),XR(e)
- Threat
- DUALS(6)
- Vars
- R(g);OGATE,P_PINB(E),P_SPINR(g),XR(A)::QAB(G),XR(g)
- Refutation
- P(f);
- Try
- R(H);N_SPINB(E)
- Threat
- DUALS(2)
- Vars
- S(d);XR(H)::B(E)
- B(a);::B(E)
- Refutation
- P(f);
- Try
- Q(G);CHECK,N_PINR(e)
- Refutation
- B(a);P_SPINB(a)
- Try
- Actual
- R(A);
- Threat
- R1(A)
- Vars
- S(d);N_PINB(E)::B(E)
- P(f);N_PINB(E)::B(E)
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).