MESON Chess Problem Database
Problem Display
PID: 174034 (7B/7P/1K2P1Br/5R2/1Q1NkN1p/4bp2/5p1q/n2rR3 w - - 0 1)
Bottacchi, Antonio
1st Prize, In Tramway (Lo Scacchista), 1920
#2
10 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.Re5#
- 1...Rxd4
- 2.Qxd4#
- 1...Rxh7
- 2.Rf7#
- 2.Rf8#
- 1...Qxf4
- Tries
- 1.Rc5+?
- 1...Kxf4
- 2.Se2#
- 1...Rxg6!
- 1...Kxf4
- 1.Rf6+?
- 1...Ke5
- 2.Rxe3#
- 2.Rf7#
- 2.Rf8#
- 2.Qc5#
- 1...Rxg6!
- 1...Ke5
- 1.Qc3?
- threat
- 2.Rxe3#
- 2.Qxe3#
- 2.Qc6#
- 1...Qxf4
- 2.Re5#
- 1...Rxe1
- 2.Qd3#
- 2.Qc6#
- 1...Rxd4
- 2.Rxe3#
- 2.Qxd4#
- 2.Qxe3#
- 1...fxe1Q
- 2.Qc6#
- 1...fxe1S
- 2.Qc6#
- 1...fxe1B
- 2.Qc6#
- 1...fxe1R
- 2.Qc6#
- 1...f1S
- 2.Qc6#
- 1...Rc1
- 2.Rxe3#
- 2.Qd3#
- 2.Qxe3#
- 1...Rd3
- 2.Qxd3#
- 2.Qc6#
- 1...Sc2
- 2.Qc6#
- 1...Rb1+!
- threat
- 1.Qc5?
- threat
- 2.Qd5#
- 2.Qe5#
- 2.Qc6#
- 1...Qxf4
- 2.Re5#
- 1...Rxd4
- 2.Qxd4#
- 2.Qe5#
- 1...Rc1
- 2.Qd5#
- 2.Qe5#
- 1...Rb1+!
- threat
- 1.Qd6?
- threat
- 2.Qe5#
- 2.Qd5#
- 2.Qc6#
- 1...Qxf4
- 2.Rxf4#
- 2.Re5#
- 1...Rxd4
- 2.Qe5#
- 2.Qxd4#
- 1...Rc1
- 2.Qe5#
- 2.Qd5#
- 1...Rb1+!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qc6#
- 1...Qxf4
- 2.Re5#
- 1...Rxd4
- 2.Qxd4#
- 1...Rc1
- 2.Qd3#
- 2.Qd5#
- 1...Rb1+!
- threat
- 1.e7?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Qxf4
- 2.Re5#
- 1...Rxe1
- 2.e8Q#
- 2.e8R#
- 1...Rxd4
- 2.Qxd4#
- 2.e8Q#
- 2.e8R#
- 1...Rxh7
- 2.Rf7#
- 2.Rf8#
- 1...fxe1Q
- 2.e8Q#
- 2.e8R#
- 1...fxe1S
- 2.e8Q#
- 2.e8R#
- 1...fxe1B
- 2.e8Q#
- 2.e8R#
- 1...fxe1R
- 2.e8Q#
- 2.e8R#
- 1...f1Q
- 2.e8Q#
- 2.e8R#
- 1...f1S
- 2.e8Q#
- 2.e8R#
- 1...f1B
- 2.e8Q#
- 2.e8R#
- 1...f1R
- 2.e8Q#
- 2.e8R#
- 1...Rb1
- 2.e8Q#
- 2.e8R#
- 1...Qg1
- 2.e8Q#
- 2.e8R#
- 1...Qg3
- 2.e8Q#
- 2.e8R#
- 1...Qh1
- 2.e8Q#
- 2.e8R#
- 1...Qg2
- 2.e8Q#
- 2.e8R#
- 1...Qh3
- 2.e8Q#
- 2.e8R#
- 1...Rc1
- 2.e8Q#
- 2.e8R#
- 1...Rd2
- 2.e8Q#
- 2.e8R#
- 1...Rd3
- 2.e8Q#
- 2.e8R#
- 1...Rh5
- 2.e8Q#
- 2.e8R#
- 1...Sc2
- 2.e8Q#
- 2.e8R#
- 1...Sb3
- 2.e8Q#
- 2.e8R#
- 1...h3
- 2.e8Q#
- 2.e8R#
- 1...Rxg6+!
- threat
- 1.Rc5+?
- Keys
- 1.Kc7!
- threat
- 2.Qb7#
- 1...Qxf4+
- 2.Re5#
- 1...Rc1+
- 2.Sc2#
- 1...Rxh7+
- 2.Rf7#
- 1...Rxd4
- 2.Qxd4#
- 1...Rb1
- 2.Sb3#
- threat
- 1.Kc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(d);SBLOCK,XS(D)::B(H)+R(E),DCHECK
- R(b);OGATE,P_SPINR(b),XS(C)::QAR1(B),XR(b)
- Tries
- Try
- R(E);CHECK,N_SPINS(C)
- Vars
- K(g);N_SPINB(e),P-FLIGHT,XS(D)::QAR(B)+S(C),DCHECK
- Refutation
- R(i);P_PINP(G),XB(H)
- Try
- R(E);CHECK
- Refutation
- R(i);XB(H)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(d);SBLOCK,XS(D)::B(H)+R(E),DCHECK
- P(c);N_SPINB(e),XR(A)::QAB(B)
- P(c);::QAB(B)
- S(a);::QAB(B)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_SPINS(C)
- Threat
- DUALS(3)
- Vars
- Q(d);SBLOCK,XS(D)::B(H)+R(E),DCHECK
- Refutation
- R(b);CHECK
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- R(b);CHECK
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(d);SBLOCK,XS(D)::B(H)+R(E),DCHECK
- R(b);OGATE,P_SPINR(b),XS(C)::QAR1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- P(G);P_SPINB(H)
- Threat
- P=Q
- Vars
- Q(d);SBLOCK,XS(D)::B(H)+R(E),DCHECK
- R(b);N_SPINB(e),XR(A)::P=Q
- P(c);N_SPINB(e),XR(A)::P=Q
- P(c);::P=Q
- R(b);P_PINQ(B)::P=Q
- Q(d);::P=Q
- R(b);::P=Q
- R(i);N_PINB(H)::P=Q
- S(a);::P=Q
- P(h);::P=Q
- Refutation
- R(i);CHECK,XB(H)
- Try
- Actual
- K(F);N_SPINS(C),P_SPINS(D),S_FLIGHT
- Threat
- QAB(B)
- Vars
- Q(d);CHECK,SBLOCK,XS(D)::B(H)+R(E),DCHECK
- R(b);CHECK,N_GUARD::QAR(B)+S(C)
- R(i);CHECK,N_GUARD,XP(I)::B(H)+R(E)
- R(b);OGATE,P_SPINR(b),XS(C)::QAR1(B),XR(b)
- R(b);N_GUARD::QAR(B)+S(C)
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).