MESON Chess Problem Database
Problem Display
PID: 11762 (B7/8/1n1qNnK1/3Nr1p1/R1P1k3/2P1BpQ1/2P5/5r2 w - - 0 1)
Piatesi, Antonio
3rd Prize, Sinfonie Scacchistiche, 1971
#2
10 + 8
| 3753 | FIDE Album (1971-1973) | 1978 |
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Sxc5#
- 1...Qb8
- 2.Sc5#
- 1...Qd7
- 2.Sc5#
- 1...Qd8
- 2.Sc5#
- 1...Sxc4
- 2.Rxc4#
- 1...Sbd7
- 2.c5#
- 1...Sc8
- 2.c5#
- 1...Sg4
- 2.Qxg4#
- 1...Sfd7
- 2.Qg4#
- 1...Sh7
- 2.Qg4#
- 1...Se8
- 2.Qg4#
- 1...Sg8
- 2.Qg4#
- 1...f2
- 2.Sxf6#
- 2.Qg2#
- 1...g4
- 2.Qf4#
- 1...Qc5
- Tries
- 1.Bc1?
- threat
- 2.Sxf6#
- 1...Qxd5
- 2.Sc5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sbxd5
- 2.c5#
- 1...Sfxd5
- 2.Qg4#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- 1...Rxc1!
- threat
- 1.Bf2?
- threat
- 2.Sxf6#
- 1...Qxd5
- 2.Sc5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sbxd5
- 2.c5#
- 1...Sfxd5
- 2.Qg4#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- 1...Rxf2!
- threat
- 1.Bd4?
- threat
- 2.Sxf6#
- 1...Qxd5
- 2.Sc5#
- 2.Qxe5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sfxd5
- 2.Qg4#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- 1...Sbxd5!
- threat
- 1.Bf4?
- threat
- 2.Sxf6#
- 1...Qxd5
- 2.Sc5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sbxd5
- 2.c5#
- 1...gxf4
- 2.Qxf4#
- 1...Sg4
- 2.Sf6#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 1...Sh7
- 2.Sf6#
- 1...Se8
- 2.Sf6#
- 1...Sg8
- 2.Sf6#
- 1...Sfxd5!
- threat
- 1.Bc5?
- threat
- 2.Sxf6#
- 1...Qxc5
- 2.Sxc5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sbxd5
- 2.cxd5#
- 1...Sfxd5
- 2.Qg4#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- 1...Qxd5!
- threat
- 1.Bxg5?
- threat
- 2.Sxf6#
- 2.Qf4#
- 1...Rxg5+
- 2.Sxg5#
- 1...Qxd5
- 2.Sc5#
- 2.Qf4#
- 1...Rxe6
- 2.Sxf6#
- 1...Sbxd5
- 2.Qf4#
- 2.c5#
- 1...Sfxd5
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Rf5
- 2.Sxf6#
- 1...Sg4
- 2.Sf6#
- 2.Qf4#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Rxd5!
- threat
- 1.Bxb6?
- threat
- 2.Sxf6#
- 2.c5#
- 1...Qxd5
- 2.cxd5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sxd5
- 2.Qg4#
- 1...Qa3
- 2.Sxf6#
- 1...Qb4
- 2.Sxf6#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Sxf6#
- 1...Qd7
- 2.Sxf6#
- 2.Sc5#
- 1...Ra1
- 2.Sxf6#
- 1...Rb1
- 2.Sxf6#
- 1...Rd1
- 2.Sxf6#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 2.c5#
- 1...Sh5
- 2.Sf6#
- 2.c5#
- 1...Sd7
- 2.Sf6#
- 2.Qg4#
- 2.c5#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 2.c5#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 2.c5#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- 2.c5#
- 1...Qxb6!
- threat
- 1.Qxe5+?
- 1...Qxe5
- 2.Sc5#
- 1...Kxe5!
- 1...Qxe5
- 1.c5+?
- 1...Sc4
- 2.Rxc4#
- 1...Sxa4!
- 1...Sc4
- 1.Bc1?
- Keys
- 1.Bd2!
- threat
- 2.Sxf6#
- 1...Qxd5
- 2.Sc5#
- 1...Rxd5
- 2.Sxg5#
- 1...Sbxd5
- 2.c5#
- 1...Sfxd5
- 2.Qg4#
- 1...Sg4
- 2.Sf6#
- 2.Qxg4#
- 1...Sh5
- 2.Sf6#
- 1...Sfd7
- 2.Sf6#
- 2.Qg4#
- 1...Sh7
- 2.Sf6#
- 2.Qg4#
- 1...Se8
- 2.Sf6#
- 2.Qg4#
- 1...Sg8
- 2.Sf6#
- 2.Qg4#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 13
- Sets
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD::S(H)
- S(f);OGATE,P_SPINS(f),XP(F)::R(E),XS(f)
- S(f);N_GUARD::R(E)+P(F)
- S(h);N_GUARD,P_PINS(H)::QAR2(D),XS(h)
- S(h);N_GUARD,P_PINS(H)::QAR2(D)
- P(e);N_GUARD::QAR1(D)
- Tries
- Try
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(G)::S(H)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(f);N_GUARD,P_SPINS(f),XS(G)::R(E)+P(F)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- R(a);XB(C)
- Try
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(G)::S(H)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(f);N_GUARD,P_SPINS(f),XS(G)::R(E)+P(F)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- R(a);XB(C)
- Try
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- S(f);P_SPINS(f),XS(G)
- Try
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(G)::S(H)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(f);N_GUARD,P_SPINS(f),XS(G)::R(E)+P(F)
- P(e);OGATE,XB(C)::QAR1(D),XP(e)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- S(h);P_PINS(H),P_SPINS(h),XS(G)
- Try
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- Q(g);XB(C)::S(H),XQ(g)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(f);OGATE,P_SPINS(f),XS(G)::R(E)+P(F),XS(f)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- Q(g);P_SPINQ(g),XS(G)
- Try
- B(C);XP(e)
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,XB(C)::S(H),XR(d)
- R(d);XS(H)::B(J)+S(G),DCHECK,XS(h)
- R(d);::B(J)+S(G),DCHECK,XS(h)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
- Refutation
- R(d);P_SPINR(d),XS(G)
- Try
- B(C);XS(f)
- Threat
- DUALS(2)
- Vars
- Q(g);OGATE,P_SPINQ(g),XS(G)::R(E)+P(F),XQ(g)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- Q(g);::B(J)+S(G),DCHECK,XS(h)
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);::S(G),XS(h)
- R(a);::B(J)+S(G),DCHECK,XS(h)
- Refutation
- Q(g);XB(C)
- Try
- Q(D);CHECK,XR(d)
- Vars
- Q(g);SBLOCK,XQ(D)::S(H)
- Refutation
- K(c);P-FLIGHT,XQ(D)
- Try
- P(F);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::R(E),XS(f)
- Refutation
- S(f);XR(E)
- Try
- Actual
- B(C);
- Threat
- B(J)+S(G),DCHECK,XS(h)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(G)::S(H)
- R(d);N_GUARD,P_SPINR(d),XS(G)::S(H),XP(e)
- S(f);N_GUARD,P_SPINS(f),XS(G)::R(E)+P(F)
- S(h);N_GUARD,P_PINS(H),P_SPINS(h),XS(G)::QAR2(D)
- S(h);P_PINS(H)::B(J)+S(G),DCHECK
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).