MESON Chess Problem Database
Problem Display
PID: 248171 (5Q2/1npp2P1/2p2n2/3k1NR1/1prN1p1K/2b4B/b7/B3R3 w - - 0 1)
Mari, Alberto
Comm., White MT (B), 1952-1953
#2
9 + 11
| 14867 | BCPS Library | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Sd6#
- 1...Rc5
- 2.Qf7#
- 1...Bxe1+
- 2.Sg3#
- 1...Bd2
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 1...Bxd4
- 2.Sxd4#
- 1...Sg4
- 2.g8Q#
- 2.g8B#
- 1...Sh5
- 2.g8Q#
- 2.g8B#
- 1...Sh7
- 2.g8Q#
- 2.g8B#
- 1...Se8
- 2.g8Q#
- 2.g8B#
- 1...c5
- 2.Qf7#
- 1...Rxd4
- Tries
- 1.Sb3?
- threat
- 2.Sfd4#
- 2.Qf7#
- 1...Bxe1+
- 2.Sg3#
- 1...f3+
- 2.Sfd4#
- 1...Rd4
- 2.Sd6#
- 2.Qf7#
- 1...Re4
- 2.Se3#
- 1...Rc5
- 2.Qf7#
- 1...Be5
- 2.Rxe5#
- 2.Qf7#
- 1...Se4
- 2.Se3#
- 1...c5
- 2.Sfd4#
- 1...Bb1
- 2.Qf7#
- 1...Bd4
- 2.Sfxd4#
- 2.Qf7#
- 1...Sg4
- 2.Qf7#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sh7
- 2.Qf7#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sc5
- 2.Sfd4#
- 1...Sd6
- 2.Se7#
- 1...Sd8
- 2.Sfd4#
- 1...Bxb3!
- threat
- 1.Sf3?
- threat
- 2.S5d4#
- 1...Bxe1+
- 2.Sg3#
- 1...Rd4
- 2.Sd6#
- 1...Re4
- 2.Se3#
- 1...Rc5
- 2.Qf7#
- 1...Be5
- 2.Rxe5#
- 1...Se4
- 2.Se3#
- 2.g8Q#
- 2.g8B#
- 1...Sd6
- 2.Se7#
- 1...Bd4
- 2.S5xd4#
- 1...Sg4
- 2.g8Q#
- 2.g8B#
- 1...Sh7
- 2.g8Q#
- 2.g8B#
- 1...Bb1!
- threat
- 1.Sb5?
- threat
- 2.Sxc7#
- 2.Sfd4#
- 2.Se7#
- 1...Bxe1+
- 2.Sg3#
- 1...f3+
- 2.Sfd4#
- 1...Rd4
- 2.Sfd6#
- 1...Re4
- 2.Se3#
- 1...Rc5
- 2.Qf7#
- 1...Be5
- 2.Rxe5#
- 1...Se4
- 2.Se3#
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...c5
- 2.Sfd4#
- 2.Se7#
- 1...d6
- 2.Sfd4#
- 2.Se7#
- 1...Bb1
- 2.Sxc7#
- 2.Se7#
- 1...Bd4
- 2.Sxc7#
- 2.Sfxd4#
- 2.Se7#
- 1...Sg4
- 2.Sxc7#
- 2.Se7#
- 2.g8Q#
- 2.g8B#
- 1...Sh7
- 2.Sxc7#
- 2.Se7#
- 2.g8Q#
- 2.g8B#
- 1...Se8
- 2.Sfd4#
- 2.Se7#
- 2.g8Q#
- 2.g8B#
- 1...cxb5!
- threat
- 1.Se7+?
- 1...Kd6
- 2.Sd5#
- 2.Sexc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 2.Qxf6#
- 1...Kxd4!
- 1...Kd6
- 1.Qe7?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Bxe1+
- 2.Sg3#
- 1...Rxd4
- 2.Se3#
- 2.Sd6#
- 1...Bxd4
- 2.Se3#
- 2.Sxd4#
- 1...Rc5
- 2.Qf7#
- 1...Se4
- 2.g8Q#
- 2.g8B#
- 1...Sg4
- 2.g8Q#
- 2.g8B#
- 1...d6!
- threat
- 1.Qxf6?
- threat
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Bxe1+
- 2.Sg3#
- 1...Rxd4
- 2.Sd6#
- 1...Bxd4
- 2.Sxd4#
- 2.Se7#
- 1...Bb1
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Rc5
- 2.Sd6#
- 2.Qf7#
- 2.g8Q#
- 2.g8B#
- 1...Sd6
- 2.Sxd6#
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Sg3#
- 2.Sxd6#
- 2.Sh6#
- 2.Se7#
- 1...Kc5!
- threat
- 1.Sb3?
- Keys
- 1.Sc2!
- threat
- 2.Sfd4#
- 1...Bxe1+
- 2.Sg3#
- 1...Rd4
- 2.Sd6#
- 1...Re4
- 2.Sfe3#
- 1...Rc5
- 2.Qf7#
- 1...Be5
- 2.Rxe5#
- 1...Se4
- 2.Sfe3#
- 1...Sd6
- 2.Se7#
- 1...Bd4
- 2.Sfxd4#
- 1...Sg4
- 2.g8Q#
- 2.g8B#
- 1...Sh7
- 2.g8Q#
- 2.g8B#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(d);SBLOCK,XS(D)::R(G)+S(F)
- R(d);SBLOCK::QAB(I)
- B(b);CHECK,XR(B)::R(G)+S(F)
- B(b);XS(D)::R(G)+S(F),XB(b)
- S(h);N_GUARD::P=Q
- P(g);SBLOCK::QAB(I)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD,XR(B)::R(G)+S(F)
- P(e);CHECK::R(G)+S(F)
- R(d);SBLOCK::R(G)+S(F),DCHECK
- R(d);::QAB(I)
- S(h);SBLOCK::R(G)+S(F),DCHECK
- P(g);::R(G)+S(F)
- B(a);::QAB(I)
- S(i);::R(G)+S(F)
- S(i);SBLOCK::R(G)+S(F),DCHECK
- Refutation
- B(a);XS(D)
- Try
- S(D);
- Threat
- R(G)+S(F)
- Vars
- B(b);CHECK,N_GUARD,XR(B)::R(G)+S(F)
- R(d);S_CUTB(b)::R(G)+S(F)
- R(d);SBLOCK::R(G)+S(F),DCHECK
- R(d);SBLOCK::QAB(I)
- B(b);N_GUARD::R1(B),XB(b)
- S(i);SBLOCK::R(G)+S(F),DCHECK
- B(b);::R(G)+S(F),XB(b)
- S(h);N_GUARD::P=Q
- Refutation
- B(a);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,N_GUARD,XR(B)::R(G)+S(F)
- P(e);CHECK::R(G)+S(F)
- R(d);S_CUTB(b)::R(G)+S(F)
- R(d);SBLOCK::R(G)+S(F),DCHECK
- R(d);SBLOCK::QAB(I)
- B(b);N_GUARD::R1(B),XB(b)
- S(i);::R(G)+S(F),DCHECK
- Refutation
- P(g);XS(D)
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT,P_SPINB(b),XS(D)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,XR(B)::R(G)+S(F)
- R(d);SBLOCK::QAB(I)
- S(h);N_GUARD::P=Q
- Refutation
- P(k);
- Try
- Q(I);XS(h)
- Threat
- DUALS(6)
- Vars
- B(b);CHECK,XR(B)::R(G)+S(F)
- R(d);XS(D)::R(G)+S(F)
- Refutation
- K(f);P-FLIGHT
- Try
- Actual
- S(D);
- Threat
- R(G)+S(F)
- Vars
- B(b);CHECK,N_GUARD,XR(B)::R(G)+S(F)
- R(d);S_CUTB(b)::R(G)+S(F)
- R(d);SBLOCK::R(G)+S(F),DCHECK
- R(d);SBLOCK::QAB(I)
- B(b);N_GUARD::R1(B),XB(b)
- S(h);SBLOCK::R(G)+S(F),DCHECK
- S(i);SBLOCK::R(G)+S(F),DCHECK
- B(b);::R(G)+S(F),XB(b)
- S(h);N_GUARD::P=Q
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).