MESON Chess Problem Database
Problem Display
PID: 107758 (3rkNR1/Rb3N2/3Q4/4p1K1/1rq2p1B/5p2/B7/8 w - - 0 1)
Bottacchi, Antonio
3rd Prize, La Settimana Enigmistica, 1933
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Qe2
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 2.Qxd8#
- 1...Qd3
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 1...Qb5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 2.Qxd8#
- 1...Qa6
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qe6
- 2.Qxe6#
- 1...Qc1
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Qc2
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Qc3
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 2.Qxd8#
- 1...Qd4
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 1...Qe4
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 2.Qxd8#
- 1...Qc5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc6
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc7
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc8
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Rd7
- 2.Qxd7#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Be4
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Bd5
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Ba6
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Bc6
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Ba8
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Bc8
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Qf1
- Tries
- 1.Kh5?
- threat
- 2.Qe7#
- 1...Kxf7
- 2.Qg6#
- 1...Rxd6
- 2.Sxd6#
- 1...Qe6
- 2.Qxe6#
- 1...Qc5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc7
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Rd7
- 2.Qxd7#
- 1...Qxf7+!
- threat
- 1.Kf6?
- threat
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 2.Qxd8#
- 1...Qe6+
- 2.Sxe6#
- 2.Qxe6#
- 1...Qxf7+
- 2.Bxf7#
- 1...Qd3
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe7#
- 2.Qe6#
- 1...Qd5
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 1...Qa6
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qd4
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 2.Qe6#
- 1...Qc5
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc6
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc7
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 1...Rb6
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Rd7
- 2.Se6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sh7#
- 2.Qxd7#
- 1...Ra8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 2.Qd7#
- 1...Rb8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 2.Qd7#
- 1...Rc8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe7#
- 2.Qd7#
- 1...Rxd6+!
- threat
- 1.Kh6?
- threat
- 2.Qe7#
- 1...Qe6+
- 2.Qxe6#
- 1...Rxd6+
- 2.Sxd6#
- 1...Kxf7
- 2.Qg6#
- 1...Qxf7
- 2.Qxd8#
- 1...Qa6
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc6
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc7
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb6!
- threat
- 1.Sxd8?
- threat
- 2.Sfe6#
- 2.Qd7#
- 1...Qd3
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Bf7#
- 1...Qb5
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Bf7#
- 1...Qd5
- 2.Sfe6#
- 1...Qe6
- 2.Sfxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qd4
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Bf7#
- 1...Qc6
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Bf7#
- 1...Qc7
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc8
- 2.Sfe6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Bf7#
- 1...Bc6
- 2.Sfe6#
- 2.Re7#
- 2.Qe7#
- 1...Bc8
- 2.Sfe6#
- 2.Re7#
- 2.Qe7#
- 1...Qxg8+!
- threat
- 1.Bxc4?
- threat
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Rxc4
- 2.Qe6#
- 1...Rb5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe6#
- 2.Qxd8#
- 1...Rb6
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Rd7
- 2.Sg6#
- 2.Sxd7#
- 2.Sh7#
- 2.Qxd7#
- 1...Ra8
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qd7#
- 1...Rb8
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qd7#
- 1...Rc8
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxe5#
- 2.Qe6#
- 2.Qd7#
- 1...Bd5
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Bc8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...e4
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Rxd6!
- threat
- 1.Rxb7?
- threat
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qxd8#
- 1...Qxf7
- 2.Bxf7#
- 1...Rxd6
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 1...Rd7
- 2.Qxd7#
- 1...Qd3
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Re7#
- 2.Qxe5#
- 2.Qe7#
- 2.Qe6#
- 1...Qd5
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 1...Qe6
- 2.Sxe6#
- 2.Sg6#
- 2.Sh7#
- 2.Qxe6#
- 2.Qxd8#
- 1...Qd4
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qe6#
- 1...Qc5
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Re7#
- 2.Qxd8#
- 1...Qc7
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Qc8
- 2.Se6#
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 1...Ra8
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qd7#
- 1...Rb8
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qd7#
- 1...Rc8
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 2.Re7#
- 2.Qe7#
- 2.Qd7#
- 1...Rxb7!
- threat
- 1.Qxe5+?
- 1...Qe6
- 2.Qxe6#
- 1...Kxf7!
- 1...Qe6
- 1.Qc7?
- threat
- 2.Se6#
- 2.Sg6#
- 2.Sh7#
- 1...Qxf7
- 2.Bxf7#
- 2.Qxf7#
- 1...Rd7
- 2.Qxd7#
- 1...Qe6
- 2.Sxe6#
- 2.Sg6#
- 2.Sh7#
- 1...Qc5
- 2.Qxd8#
- 1...Qxc7!
- threat
- 1.Kh5?
- Keys
- 1.Kg4!
- threat
- 2.Qe7#
- 1...Qe6+
- 2.Qxe6#
- 1...Qc8+
- 2.Sd7#
- 1...Bc8+
- 2.Se6#
- 1...Kxf7
- 2.Qg6#
- 1...Qxf7
- 2.Qxd8#
- 1...Rxd6
- 2.Sxd6#
- 1...Qc5
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 2.Qxd8#
- 1...Qc7
- 2.Sg6#
- 2.Sd7#
- 2.Sh7#
- 1...Rd7
- 2.Qxd7#
- threat
- 1.Kg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- Q(c);N_GUARD::QAR2(D),XQ(c)
- R(g);N_GUARD::QAB1(D),XR(g)
- R(g);N_GUARD::QAB1(D)
- Tries
- Try
- K(C);P-FLIGHT
- Threat
- QAR1(D)
- Vars
- K(h);OGATEB,P_SPINB(f),P_SPINQ(c),S_FLIGHT,XS(F)::QAB1(D)
- R(g);XQ(D)::S(F),XR(g)
- Q(c);N_GUARD::QAR2(D),XQ(c)
- R(g);N_GUARD::QAB1(D),XR(g)
- Refutation
- Q(c);CHECK,XS(F)
- Try
- K(C);S_FLIGHT
- Threat
- DUALS(6)
- Vars
- Q(c);CHECK,OGATE,XS(F)::B(A),XQ(c)
- Refutation
- R(g);CHECK,XQ(D)
- Try
- K(C);S_FLIGHT
- Threat
- QAR1(D)
- Vars
- Q(c);CHECK,N_GUARD::QAR2(D),XQ(c)
- R(g);CHECK,XQ(D)::S(F),XR(g)
- K(h);OGATEB,P_SPINB(f),P_SPINQ(c),S_FLIGHT,XS(F)::QAB1(D)
- Q(c);XS(F)::QAR1(D),XR(g)
- R(g);N_GUARD::QAB1(D),XR(g)
- Refutation
- R(b);P_PINQ(D)
- Try
- S(F);XR(g)
- Threat
- DUALS(2)
- Vars
- Q(c);::R(H)+S(G)
- Q(c);::R(H)+S(G),XQ(c)
- Q(c);OGATE::B(A),XQ(c)
- Refutation
- Q(c);CHECK,XR(H)
- Try
- B(A);XQ(c)
- Threat
- DUALS(6)
- Vars
- R(b);XB(A)::QAR2(D)
- Refutation
- R(g);XQ(D)
- Try
- R(E);XB(f)
- Threat
- DUALS(6)
- Vars
- Q(c);OGATE,XS(F)::B(A),XQ(c)
- R(g);N_GUARD::QAB1(D),XR(g)
- Refutation
- R(b);XR(E)
- Try
- Q(D);CHECK,XP(e)
- Vars
- Q(c);N_GUARD,P_SPINQ(c)::QAR2(D),XQ(c)
- Refutation
- K(h);P_SPINB(f),P_SPINQ(c),S_FLIGHT,XS(F)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(g);N_GUARD::QAB1(D),XR(g)
- Q(c);::QAR1(D),XR(g)
- Refutation
- Q(c);XQ(D)
- Try
- Actual
- K(C);P-FLIGHT
- Threat
- QAR1(D)
- Vars
- Q(c);CHECK,N_GUARD::QAR2(D),XQ(c)
- Q(c);CHECK::R(H)+S(G)
- B(f);CHECK::R(H)+S(G)
- K(h);OGATEB,P_SPINB(f),P_SPINQ(c),S_FLIGHT,XS(F)::QAB1(D)
- Q(c);XS(F)::QAR1(D),XR(g)
- R(g);XQ(D)::S(F),XR(g)
- R(g);N_GUARD::QAB1(D),XR(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).