MESON Chess Problem Database
Problem Display
PID: 270288 (4QKB1/3p2pr/Rn2Nk1n/2pR4/r2pp1P1/8/5N2/B1b1q3 w - - 0 1)
Simoni, Francesco
Comm., L'Italia Scacchistica, 2004
#2
9 + 12
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Sxe4#
- 1...Qc3
- 2.Sxe4#
- 1...Qb4
- 2.Sxe4#
- 1...Qa5
- 2.Sxe4#
- 1...Qd1
- 2.Sxe4#
- 1...Qf1
- 2.Sxe4#
- 1...Qg1
- 2.Sxe4#
- 1...Bb2
- 2.g5#
- 1...Ba3
- 2.g5#
- 1...Be3
- 2.Sxe4#
- 1...Sxg4
- 2.Sxg4#
- 2.Qf7#
- 1...Sf5
- 2.Rxf5#
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sxg8
- 2.Rf5#
- 2.Qf7#
- 1...e3
- 2.Se4#
- 2.g5#
- 1...c4
- 2.Bxd4#
- 1...dxe6
- 2.Qxe6#
- 1...Qd2
- Tries
- 1.Sf4?
- threat
- 2.Sh5#
- 2.Qg6#
- 2.Qe5#
- 2.Qe7#
- 2.Qd8#
- 2.g5#
- 1...Sxg4
- 2.Sxg4#
- 2.Qg6#
- 2.Qf7#
- 2.Qe7#
- 2.Qd8#
- 1...Sxg8
- 2.Rf5#
- 2.Qg6#
- 2.Qf7#
- 2.Qe5#
- 2.g5#
- 1...Sf5
- 2.Rxf5#
- 2.Qg6#
- 1...Qg1
- 2.Sxe4#
- 2.Sh5#
- 2.Qg6#
- 2.Qe5#
- 2.Qe7#
- 2.Qd8#
- 1...Qh1
- 2.Qg6#
- 2.Qe5#
- 2.Qe7#
- 2.Qd8#
- 2.g5#
- 1...Sf7
- 2.Rf5#
- 2.Qxf7#
- 2.Qe7#
- 1...d6
- 2.Sh5#
- 2.Qg6#
- 2.Qe6#
- 2.Qe7#
- 2.Qd8#
- 2.g5#
- 1...g5
- 2.Sh5#
- 2.Rd6#
- 2.Qg6#
- 2.Qe5#
- 1...g6
- 2.Qxg6#
- 2.Qe5#
- 2.g5#
- 1...Bxf4!
- threat
- 1.Sg5?
- threat
- 2.Sxh7#
- 1...Bxg5
- 2.Rd6#
- 1...Sf7
- 2.Qxf7#
- 1...Rh8!
- threat
- 1.Bxh7?
- threat
- 2.Qg6#
- 2.Qe7#
- 1...Sc8
- 2.Qg6#
- 1...Sf5
- 2.Rxf5#
- 2.Qg6#
- 2.Qf7#
- 1...Sf7
- 2.Rf5#
- 2.Qxf7#
- 2.Qe7#
- 1...Sg8
- 2.Rf5#
- 2.Qg6#
- 2.Qf7#
- 1...g6
- 2.Qxg6#
- 2.Qe7#
- 1...Sxd5!
- threat
- 1.Rg5?
- threat
- 2.Qg6#
- 2.Qe7#
- 2.Qd8#
- 1...Sxg8
- 2.Rf5#
- 2.Qg6#
- 2.Qf7#
- 1...Sf5
- 2.Rxf5#
- 1...Sd5
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf7
- 2.Qxf7#
- 2.Qe7#
- 1...g6
- 2.Qxg6#
- 1...Bxg5!
- threat
- 1.Sf4?
- Keys
- 1.Sxc5!
- threat
- 2.Sxd7#
- 1...Rxa6
- 2.Bxd4#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Qxf7#
- 1...Qb4
- 2.Sxe4#
- 1...Ba3
- 2.g5#
- 1...d6
- 2.Qe6#
- 1...g5
- 2.Rd6#
- 1...g6
- 2.Qe5#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 10
- Sets
- Q(b);N_GUARD::S(B),XP(e)
- Q(b);N_GUARD,N_SPINP(d)::S(B),XP(e)
- B(a);N_GUARD,N_SPINP(d)::P(C)
- B(a);N_GUARD::P(C)
- B(a);S_CUTQ(b)::S(B),XP(e)
- S(i);N_GUARD::QAR1(G),XS(i)
- P(f);N_GUARD,S_CUTR(c)::B(A),XP(d)
- P(j);OGATE,XS(F)::QAR1(G),XP(j)
- Tries
- Try
- S(F);P_PINS(g)
- Threat
- DUALS(6)
- Refutation
- B(a);XS(F)
- Try
- S(F);P_PINS(g)
- Threat
- S(F),XR(l)
- Vars
- B(a);SBLOCK,XS(F)::R(D)
- S(i);N_GUARD::QAR1(G),XS(i)
- Refutation
- R(l);P_PINB(I)
- Try
- B(I);XR(l)
- Threat
- DUALS(2)
- Vars
- S(g);::QAR1(G)
- Refutation
- S(g);XR(D)
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(i);N_GUARD::R1(D),XS(i)
- S(g);::QAR1(G)
- P(k);::QAR1(G),XP(k)
- Refutation
- B(a);XR(D)
- Try
- Actual
- S(F);P_PINS(g),XP(f)
- Threat
- S(F),XP(j)
- Vars
- R(c);N_GUARD,N_SPINS(g),XR(E)::B(A),XP(d)
- S(i);N_GUARD::R1(D),XS(i)
- S(i);N_GUARD::QAR1(G),XS(i)
- Q(b);N_GUARD,P_PINS(F)::S(B),XP(e)
- B(a);N_GUARD,P_PINS(F)::P(C)
- P(j);N_GUARD,N_SPINS(g)::QAR1(G)
- P(k);SBLOCK::R(D)
- P(k);SBLOCK::QAB1(G)
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).