MESON Chess Problem Database
Problem Display
PID: 255091 (3N2bq/KR3p1r/R3P1P1/2p1k1B1/2P3nN/2pPP1p1/5Q1b/5r2 w - - 0 1)
Piatesi, Antonio
Schach-Aktiv, 1987
#2
12 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qf4#
- 2.Qf5#
- 1...Rb1
- 2.Qf4#
- 2.Qf5#
- 1...Rc1
- 2.Qf4#
- 2.Qf5#
- 1...Rd1
- 2.Qf4#
- 2.Qf5#
- 1...Re1
- 2.Qf4#
- 2.Qf5#
- 1...Rg1
- 2.Qf4#
- 2.Qf5#
- 1...Rh1
- 2.Qf4#
- 2.Qf5#
- 1...Sxe3
- 2.Qxe3#
- 1...Sf6
- 2.Bf4#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Sf3#
- 1...f6
- 2.Bf4#
- 1...Ra1
- Tries
- 1.Rc7?
- threat
- 2.Rxc5#
- 1...Sxe3
- 2.Qxe3#
- 1...fxg6
- 2.Sxg6#
- 1...Sf6
- 2.Bf4#
- 1...f5
- 2.Sf3#
- 1...f6
- 2.Bf4#
- 1...fxe6!
- threat
- 1.Qf3?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Sxe3
- 2.Qe4#
- 2.Qxe3#
- 1...fxe6
- 2.Qe4#
- 1...Sf2
- 2.Qd5#
- 2.Qf4#
- 2.Qf5#
- 1...Sf6
- 2.Bf4#
- 1...f5
- 2.Qd5#
- 1...Rxf3!
- threat
- 1.d4+?
- 1...Ke4
- 2.Qc2#
- 1...cxd4!
- 1...Ke4
- 1.e4?
- threat
- 2.Sf3#
- 2.Qxc5#
- 1...Rxh4
- 2.Qxc5#
- 1...Sxf2
- 2.Sf3#
- 1...gxf2
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 1...Qf6
- 2.Qxc5#
- 1...Bg1
- 2.Sf3#
- 1...Sf6
- 2.Sf3#
- 2.Bf4#
- 1...Rxf2!
- threat
- 1.exf7?
- threat
- 2.Bf4#
- 2.Re6#
- 2.Re7#
- 1...Rxf2
- 2.Re6#
- 2.Re7#
- 1...Rxh4
- 2.Re6#
- 2.Re7#
- 1...Rxf7
- 2.Re6#
- 1...Bxf7
- 2.Bf4#
- 1...Sxe3
- 2.Qxe3#
- 1...gxf2
- 2.Re6#
- 2.Re7#
- 1...Ra1
- 2.Bf4#
- 2.Re7#
- 2.Qf4#
- 2.Qf5#
- 1...g2
- 2.Re6#
- 2.Re7#
- 1...Qf6!
- threat
- 1.e7?
- threat
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Rxf2
- 2.e8Q#
- 2.e8R#
- 1...Rxh4
- 2.e8Q#
- 2.e8R#
- 1...Sxf2
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Sxe3
- 2.Qxe3#
- 1...gxf2
- 2.e8Q#
- 2.e8R#
- 1...fxg6
- 2.Sxg6#
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Ra1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rb1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rc1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rd1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Re1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rg1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rh1
- 2.Bf4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Rh5
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Bg1
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...Sf6
- 2.Bf4#
- 1...Sh6
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...c2
- 2.Bf4#
- 2.e8Q#
- 2.e8R#
- 1...g2
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.Sf3#
- 2.Bf4#
- 1...f6
- 2.Bf4#
- 1...Qf6!
- threat
- 1.Rc7?
- Keys
- 1.Rd7!
- threat
- 2.Rd5#
- 1...Sxe3
- 2.Qxe3#
- 1...fxe6
- 2.Sc6#
- 1...fxg6
- 2.Sxg6#
- 1...Sf6
- 2.Bf4#
- 1...f5
- 2.Sf3#
- 1...f6
- 2.Bf4#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(e);OGATE,XP(C)::QAR2(A),XS(e)
- S(e);SBLOCK::B(F)
- P(h);P_PINR(K),XP(I)::S(E),XP(h)
- P(h);P_PINR(K),SBLOCK::S(E)
- P(h);P_PINR(K),SBLOCK::B(F)
- Tries
- Try
- R(K);
- Threat
- R(K),XP(f)
- Vars
- S(e);OGATE,XP(C)::QAR2(A),XS(e)
- P(h);P_PINR(K),XP(I)::S(E),XP(h)
- S(e);SBLOCK::B(F)
- P(h);P_PINR(K),SBLOCK::S(E)
- P(h);P_PINR(K),SBLOCK::B(F)
- Refutation
- P(h);P_PINR(K),XP(H)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(h);P_PINR(K),XP(H)::QAR1(A)
- S(e);SBLOCK::B(F)
- P(h);P_PINR(K)::QAR1(A)
- Refutation
- R(a);XQ(A)
- Try
- P(B);CHECK
- Vars
- K(g);P-FLIGHT,S_CUTP(f)::QAB(A)
- Refutation
- P(f);XP(B)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(i);XS(E)::QAR2(A),XP(f)
- S(e);XQ(A)::S(E)
- P(d);XQ(A)::S(E)
- S(e);::S(E)
- Q(k);::QAR2(A),XP(f)
- B(b);::S(E)
- Refutation
- R(a);XQ(A)
- Try
- P(H);XP(h)
- Threat
- DUALS(3)
- Vars
- R(i);P_PINR(K),XP(H)::R1(G)
- B(j);XP(H)::B(F)
- S(e);OGATE,XP(C)::QAR2(A),XS(e)
- Refutation
- Q(k);
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- R(a);XQ(A)::P=Q
- R(i);XS(E)::P=Q
- S(e);OGATE,XP(C)::QAR2(A),XS(e)
- P(d);XQ(A)::P=Q
- S(e);::B(F)
- P(d);::P=Q
- P(h);::B(F)
- Refutation
- Q(k);
- Try
- Actual
- R(K);
- Threat
- R1(K)
- Vars
- S(e);OGATE,XP(C)::QAR2(A),XS(e)
- P(h);P_PINR(K),SBLOCK,XP(H)::S(L)
- P(h);P_PINR(K),XP(I)::S(E),XP(h)
- S(e);SBLOCK::B(F)
- P(h);P_PINR(K),SBLOCK::S(E)
- P(h);P_PINR(K),SBLOCK::B(F)
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).