MESON Chess Problem Database
Problem Display
PID: 95706 (7K/Q1PRp1Np/8/r3k2r/4n2P/4p1P1/p3p1BB/q3bRN1 w - - 0 1)
Sardella, Giuseppe
L'Italia Scacchistica, 1984
#2
11 + 11
| 14744 | Nuova Antologia dei Problemisti Italiani | 1992 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qxd4#
- 1...Qb1
- 2.Qd4#
- 1...Qc1
- 2.Qd4#
- 1...Rxh4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rh6
- 2.Rf5#
- 1...Sd2
- 2.Qxa5#
- 1...Sc3
- 2.Qd4#
- 1...Sxg3
- 2.Qxe3#
- 1...Sc5
- 2.Rd5#
- 1...Sg5
- 2.Rf5#
- 1...Sd6
- 2.Rxe7#
- 1...Qd4
- Tries
- 1.Rf8?
- threat
- 2.Sf3#
- 1...Sxg3
- 2.Qxe3#
- 1...Rf5
- 2.Rxf5#
- 1...Sd2
- 2.Qxa5#
- 1...Sf2
- 2.g4#
- 1...Sc3
- 2.Qd4#
- 1...Sc5
- 2.Rd5#
- 1...Sg5
- 2.Rf5#
- 1...Sd6
- 2.Rxe7#
- 1...Sf6!
- threat
- 1.Qc5+?
- 1...Sxc5
- 2.Rd5#
- 1...Rxc5!
- 1...Sxc5
- 1.Qb6?
- threat
- 2.Sf3#
- 2.Qe6#
- 1...Bxg3
- 2.Qe6#
- 1...Sxg3
- 2.Rxe7#
- 2.Qxe3#
- 2.Qe6#
- 1...exf1Q
- 2.Qe6#
- 1...exf1R
- 2.Qe6#
- 1...Rd5
- 2.Sf3#
- 2.Rxe7#
- 1...Ra6
- 2.Sf3#
- 1...Rf5
- 2.Rxf5#
- 2.Qe6#
- 1...Rh6
- 2.Sf3#
- 2.Rf5#
- 1...Sd2
- 2.Rxe7#
- 2.Qxa5#
- 2.Qe6#
- 1...Sf2
- 2.Rxe7#
- 2.Qe6#
- 2.g4#
- 1...Sc3
- 2.Rxe7#
- 2.Qd4#
- 2.Qe6#
- 1...Sc5
- 2.Rd5#
- 1...Sg5
- 2.Rf5#
- 1...Sd6
- 2.Rxe7#
- 1...Sf6
- 2.Rxe7#
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...Ra8+!
- threat
- 1.Qxa5+?
- 1...Sc5
- 2.Rd5#
- 2.Qxc5#
- 1...Bxa5!
- 1...Sc5
- 1.g4+?
- 1...Sg3
- 2.Qxe3#
- 1...Bg3!
- 1...Sg3
- 1.Rf8?
- Keys
- 1.Rf7!
- threat
- 2.Sf3#
- 1...Sxg3
- 2.Qxe3#
- 1...Rf5
- 2.Rxf5#
- 1...Sd2
- 2.Qxa5#
- 1...Sf2
- 2.g4#
- 1...Sc3
- 2.Qd4#
- 1...Sc5
- 2.Rd5#
- 1...Sg5
- 2.Rf5#
- 1...Sd6
- 2.Rdxe7#
- 1...Sf6
- 2.Rfxe7#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::QAB1(G),XQ(a)
- Q(a);N_GUARD::QAB1(G)
- R(i);N_GUARD,XP(F)::R1(A)
- R(i);N_GUARD::R1(A),XR(i)
- R(i);N_GUARD::R1(A)
- S(f);N_GUARD,S_CUTB(b)::QAR(G),XR(g)
- S(f);S_CUTQ(a)::QAB1(G)
- S(f);OGATEB,P_SPINS(f),XP(E)::QAR2(G),XP(e)
- S(f);S_CUTR(g)::R1(I)
- S(f);S_CUTR(i)::R1(A)
- S(f);SBLOCK::R(I),XP(j)
- Tries
- Try
- R(A);
- Threat
- S(B)
- Vars
- S(f);OGATEB,P_SPINS(f),XP(E)::QAR2(G),XP(e)
- R(i);N_GUARD::R1(A),XR(i)
- S(f);N_GUARD,S_CUTB(b)::QAR(G),XR(g)
- S(f);N_GUARD,S_CUTB(b)::B(D)+P(E)
- S(f);S_CUTQ(a)::QAB1(G)
- S(f);S_CUTR(g)::R1(I)
- S(f);S_CUTR(i)::R1(A)
- S(f);SBLOCK::R(I),XP(j)
- Refutation
- S(f);
- Try
- Q(G);CHECK
- Vars
- S(f);XQ(G)::R1(I)
- Refutation
- R(g);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(b);P_SPINB(b),XP(E)::QAR1(G)
- P(d);XR(A)::QAR1(G)
- R(g);::S(B)
- S(f);S_CUTR(g)::R1(I)
- S(f);S_CUTR(i)::R1(A)
- S(f);::R(I),XP(j)
- P(j);::QAR1(G),XP(j)
- Refutation
- R(g);CHECK
- Try
- Q(G);CHECK,XR(g)
- Refutation
- B(b);XQ(G)
- Try
- P(E);CHECK
- Vars
- S(f);P_SPINS(f),S_CUTB(b)::QAR2(G),XP(e)
- Refutation
- B(b);P_SPINB(b)
- Try
- Actual
- R(A);
- Threat
- S(B)
- Vars
- S(f);OGATEB,P_SPINS(f),XP(E)::QAR2(G),XP(e)
- R(i);N_GUARD::R1(A),XR(i)
- S(f);N_GUARD,S_CUTB(b)::QAR(G),XR(g)
- S(f);N_GUARD,S_CUTB(b)::B(D)+P(E)
- S(f);S_CUTQ(a)::QAB1(G)
- S(f);S_CUTR(g)::R1(I)
- S(f);S_CUTR(i)::R1(A)
- S(f);SBLOCK::R(I),XP(j)
- S(f);SBLOCK::R(A),XP(j)
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).