MESON Chess Problem Database
Problem Display
PID: 63656 (1bR1nq2/5B2/3pP3/6Qp/1ppkp3/R1nN2N1/4PP1K/1r4B1 w - - 0 1)
Pirrone, Santi
4th Prize, Ceramica di Imola, 1975
#2
11 + 11
| 3771 | FIDE Album (1974-1976) | 1980 |
| 35 | L'Italia Scacchistica | 2006 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.e3#
- 1...Sxe2
- 2.Sxe2#
- 1...Sa4
- 2.e3#
- 1...Sb5
- 2.e3#
- 1...Sd5
- 2.Sf5#
- 1...cxd3
- 2.e3#
- 1...exd3
- 2.e3#
- 1...e3
- 2.fxe3#
- 1...d5
- 2.Qe3#
- 1...Sa2
- Tries
- 1.Se1?
- threat
- 2.Sc2#
- 2.e3#
- 1...Sxe2
- 2.Sc2#
- 2.Sxe2#
- 1...Rc1
- 2.e3#
- 1...Rb2
- 2.e3#
- 1...Sd1
- 2.Sc2#
- 1...Sd5
- 2.Sc2#
- 1...b3
- 2.e3#
- 1...e3
- 2.Sc2#
- 2.Sf3#
- 2.fxe3#
- 1...Rxe1!
- threat
- 1.Sb2?
- threat
- 2.Rxc4#
- 2.e3#
- 1...Sxe2
- 2.Sxe2#
- 2.Rxc4#
- 1...Re1
- 2.Rxc4#
- 1...Bc7
- 2.e3#
- 1...Sd1
- 2.Rxc4#
- 1...Sd5
- 2.Rxc4#
- 1...Sc7
- 2.e3#
- 1...e3
- 2.Rxc4#
- 2.fxe3#
- 1...d5
- 2.e3#
- 1...Rxb2!
- threat
- 1.Sxb4?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.e3#
- 1...Sxe2
- 2.Sxe2#
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Rc1
- 2.Sc6#
- 2.e3#
- 1...Re1
- 2.Sc2#
- 2.Sc6#
- 1...Rb2
- 2.Sc6#
- 2.e3#
- 1...Sd1
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Sd5
- 2.Sc2#
- 2.Qxd5#
- 1...e3
- 2.Sc2#
- 2.Sc6#
- 2.Qxe3#
- 2.fxe3#
- 1...d5
- 2.Sc2#
- 2.e3#
- 1...Rxb4!
- threat
- 1.Sf4?
- threat
- 2.e3#
- 1...Sxe2
- 2.Sgxe2#
- 2.Sfxe2#
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...e3
- 2.fxe3#
- 1...Re1!
- threat
- 1.Rc5?
- threat
- 2.Sf5#
- 2.Qe3#
- 1...Qxf7
- 2.Qe3#
- 1...cxd3
- 2.Qe3#
- 2.e3#
- 1...exd3
- 2.Qe3#
- 2.e3#
- 1...Qh6
- 2.Sf5#
- 1...Sd1
- 2.Sf5#
- 2.Rd5#
- 2.Qd5#
- 1...Sd5
- 2.Sf5#
- 2.Rxd5#
- 2.Qxd5#
- 1...Sg7
- 2.Qe3#
- 2.Qf6#
- 1...e3
- 2.Qxe3#
- 2.fxe3#
- 1...d5
- 2.Qe3#
- 1...dxc5!
- threat
- 1.Rd8?
- threat
- 2.Qc5#
- 2.Qe5#
- 1...exd3
- 2.e3#
- 1...Qg7
- 2.Qc5#
- 1...Qh8
- 2.Qc5#
- 1...Ba7
- 2.Qe5#
- 1...Sa4
- 2.Qe5#
- 2.e3#
- 1...Sd5
- 2.Sf5#
- 1...d5
- 2.Qe3#
- 1...cxd3!
- threat
- 1.Qf6+?
- 1...Kd5
- 2.Sf4#
- 1...Sxf6!
- 1...Kd5
- 1.Qd5+?
- 1...Sxd5
- 2.Sf5#
- 1...Kxd5!
- 1...Sxd5
- 1.f3+?
- 1...e3
- 2.Bxe3#
- 1...Rxg1!
- 1...e3
- 1.e7?
- threat
- 2.Sf5#
- 2.Rxc4#
- 2.Qe3#
- 1...cxd3
- 2.Rc4#
- 2.e3#
- 1...exd3
- 2.Rxc4#
- 2.Qe3#
- 2.e3#
- 1...Qh6
- 2.Sf5#
- 2.Rxc4#
- 1...Bc7
- 2.Sf5#
- 2.Qe3#
- 1...Sd1
- 2.Sf5#
- 2.Rxc4#
- 2.Qd5#
- 1...Sd5
- 2.Sf5#
- 2.Qxd5#
- 1...Sc7
- 2.Sf5#
- 2.Qe3#
- 2.Qf6#
- 1...Sg7
- 2.Rxc4#
- 2.Qe3#
- 2.Qf6#
- 1...e3
- 2.Rxc4#
- 2.Qxe3#
- 2.fxe3#
- 1...d5
- 2.Qe3#
- 1...Qxf7!
- threat
- 1.Se1?
- Keys
- 1.Se5!
- threat
- 2.Sc6#
- 1...Kd5
- 2.Sf3#
- 2.Sc6#
- 1...dxe5
- 2.Qd2#
- 1...Sd5
- 2.Rxc4#
- 1...d5
- 2.e3#
- threat
- 1.Se5!
This anticipates 42660(1979)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- S(b);::P(B)
- S(b);XP(B)::S(G),XS(b)
- S(b);SBLOCK::S(G)
- P(d);SBLOCK,XS(F)::P(B)
- P(f);SBLOCK,XS(F)::P(B)
- P(f);OGATE::P(C),XP(f)
- P(h);P_PINS(G),SBLOCK::QAB1(H)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);::P(B)
- S(b);::S(F)
- P(c);::P(B)
- Refutation
- R(a);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);::R1(K),XP(d)
- B(i);::P(B)
- S(b);::R1(K),XP(d)
- S(j);::P(B)
- P(h);P_PINS(G)::P(B)
- Refutation
- R(a);XS(F)
- Try
- S(F);XP(c)
- Threat
- DUALS(3)
- Refutation
- R(a);XS(F)
- Try
- S(F);
- Threat
- P(B)
- Vars
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- P(f);OGATE::P(C),XP(f)
- Refutation
- R(a);
- Try
- R(K);
- Threat
- DUALS(2)
- Vars
- Q(k);XB(J)::QAB1(H)
- Q(k);::S(G)
- P(h);P_PINS(G)::QAB1(H)
- Refutation
- P(h);P_PINS(G),XR(K)
- Try
- R(K);P_PINP(h)
- Threat
- DUALS(2)
- Vars
- P(f);SBLOCK,XS(F)::P(B)
- Q(k);::QAB1(H)
- B(i);::QAB1(H)
- S(b);N_SPINP(h),SBLOCK::S(G)
- P(h);P_PINS(G)::QAB1(H)
- Refutation
- P(d);XS(F)
- Try
- Q(H);CHECK
- Vars
- K(e);P-FLIGHT::S(F)
- Refutation
- S(j);XQ(H)
- Try
- Q(H);CHECK
- Vars
- S(b);SBLOCK,XQ(H)::S(G)
- Refutation
- K(e);P-FLIGHT,XQ(H)
- Try
- P(C);CHECK
- Vars
- P(f);P_SPINP(f)::B(A),XP(f)
- Refutation
- R(a);XB(A)
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- P(h);P_PINS(G)::QAB1(H)
- Refutation
- Q(k);XB(J)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- P(h);SBLOCK,XS(F)::QAR2(H)
- S(b);SBLOCK::R1(K),XP(d)
- P(h);SBLOCK::P(B)
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).