MESON Chess Problem Database
Problem Display
PID: 95779 (1B3R1n/2R1pbK1/6p1/2P1kPN1/2p1r3/7N/1P1Q2Br/8 w - - 0 1)
Stocchi, Ottavio
L'Italia Scacchistica, 1949
#2
11 + 8
| 14475 | Mat Plus Review | 2007 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Be6
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Be8
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rc8#
- 1...Bg8
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...gxf5
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...e6
- 2.Rcxf7#
- 1...Re1
- Tries
- 1.Bxe4?
- threat
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 2.Qc3#
- 1...Rxh3
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...c3
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 2.Qxc3#
- 1...e6
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Re7#
- 2.Rcxf7#
- 2.Rcc8#
- 2.Qc3#
- 2.Qd6#
- 1...Rxd2!
- threat
- 1.Rxf7?
- threat
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 1...Rxh3
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 1...gxf5
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Rfxe7#
- 1...Re1
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qc3#
- 2.Qf4#
- 2.Qd5#
- 1...Re2
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qc3#
- 2.Qf4#
- 2.Qd5#
- 1...Re3
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qxe3#
- 2.Qd5#
- 1...Rd4
- 2.Rcxe7#
- 1...Rf4
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qxf4#
- 2.Qd5#
- 1...Rg4
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qd5#
- 1...Rh4
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rcxe7#
- 2.Rc8#
- 2.Qd5#
- 1...e6
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rcd7#
- 2.Rce7#
- 2.Rc8#
- 2.Qd6#
- 1...Sxf7!
- threat
- 1.Qe3?
- threat
- 2.Qxe4#
- 1...Kd5
- 2.Qxe4#
- 1...Kxf5
- 2.Qxe4#
- 1...gxf5
- 2.Rd7#
- 1...Bd5
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Rxe3!
- threat
- 1.Qf4+?
- 1...Kd4
- 2.Qxe4#
- 1...Kd5
- 2.Rd8#
- 2.Qxe4#
- 1...Rxf4!
- 1...Kd4
- 1.Qf2?
- threat
- 2.Rd7#
- 1...Rd4
- 2.Rxe7#
- 1...Rf4
- 2.Qxf4#
- 1...Kd5!
- threat
- 1.Qd3?
- threat
- 2.Qxe4#
- 1...Kxf5
- 2.Qxe4#
- 1...gxf5
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Re1
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Re2
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Re3
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Rd4
- 2.Rxe7#
- 1...Rf4
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Rg4
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Rh4
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...Bd5
- 2.Sf3#
- 2.Rc6#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rxe7#
- 2.Rcc8#
- 1...cxd3!
- threat
- 1.Qd5+?
- 1...Bxd5
- 2.Sf3#
- 1...Kxd5!
- 1...Bxd5
- 1.Bxe4?
- Keys
- 1.Qc2!
- threat
- 2.Qxe4#
- 1...Kd4
- 2.Qxe4#
- 1...Kd5
- 2.Qxe4#
- 1...Kxf5
- 2.Qxe4#
- 1...gxf5
- 2.Rd7#
- 1...Re1
- 2.Rd7#
- 1...Re2
- 2.Rd7#
- 1...Re3
- 2.Rd7#
- 1...Rd4
- 2.Rxe7#
- 1...Rf4
- 2.Rd7#
- 1...Rg4
- 2.Rd7#
- 1...Rh4
- 2.Rd7#
- 1...Bd5
- 2.Sf3#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- R(c);N_GUARD::QAB1(B)
- R(c);N_GUARD::QAB1(B),XR(c)
- P(f);OGATE::B(J)+R(H),XB(g)
- Tries
- Try
- B(C);XR(c)
- Threat
- DUALS(7)
- Refutation
- R(a);XQ(B)
- Try
- R(K);XB(g)
- Threat
- DUALS(7)
- Vars
- R(c);::B(J)+R(H),DCHECK,XP(f)
- Refutation
- S(h);XR(K)
- Try
- Q(B);P_PINR(c)
- Threat
- QAR1(B),XR(c)
- Vars
- K(d);P-FLIGHT::QAB1(B),XR(c)
- K(d);N_SPINR(c),P-FLIGHT,P_SPINB(g),XP(F)::QAB1(B),XR(c)
- P(e);SBLOCK,XP(F)::B(J)+R(H)
- Refutation
- R(c);N_SPINR(c),XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(d);P_SPINR(c),S_FLIGHT::QAR1(B),XR(c)
- Refutation
- R(c);XQ(B)
- Try
- Q(B);
- Threat
- B(J)+R(H)
- Vars
- R(c);::B(J)+R(H),DCHECK,XP(f)
- R(c);N_GUARD::QAB1(B),XR(c)
- Refutation
- K(d);P-FLIGHT,P_SPINR(c)
- Try
- Q(B);
- Threat
- QAR1(B),XR(c)
- Vars
- K(d);P-FLIGHT,P_SPINB(g),P_SPINR(c),XP(F)::QAB1(B),XR(c)
- R(c);::B(J)+R(H),DCHECK,XP(f)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);CHECK
- Vars
- B(g);SBLOCK,XQ(B)::S(G)
- Refutation
- K(d);P-FLIGHT,P_SPINR(c),XQ(B)
- Try
- Actual
- Q(B);
- Threat
- QAR1(B),XR(c)
- Vars
- K(d);S_FLIGHT::QAR1(B),XR(c)
- K(d);P-FLIGHT,P_SPINR(c)::QAB1(B),XR(c)
- K(d);P-FLIGHT,P_SPINB(g),P_SPINR(c),XP(F)::QAB1(B),XR(c)
- P(e);SBLOCK,XP(F)::B(J)+R(H)
- R(c);::B(J)+R(H)
- R(c);SBLOCK::B(J)+R(H),DCHECK,XP(f)
- B(g);SBLOCK::S(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).