MESON Chess Problem Database
Problem Display
PID: 201367 (2BQ3K/6pp/7q/3p1N2/P1k1n3/BR3bb1/5r2/1R2N3 w - - 0 1)
Belli, Nicolo
L'Italia Scacchistica, 1922
#2
9 + 9
| 5454 | Near Snap | 2020 |
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Ba6#
- 1...Qd2
- 2.Ba6#
- 1...Qe3
- 2.Ba6#
- 1...Qf4
- 2.Ba6#
- 1...Qg5
- 2.Ba6#
- 1...Qh1
- 2.Ba6#
- 1...Qh2
- 2.Ba6#
- 1...Qh3
- 2.Ba6#
- 1...Qh4
- 2.Ba6#
- 1...Qh5
- 2.Ba6#
- 1...Qa6
- 2.Bxa6#
- 1...Bd6
- 2.Ba6#
- 1...Sd6
- 2.Qc7#
- 1...Sf6
- 2.Ba6#
- 1...d4
- 2.Qxd4#
- 1...g6
- 2.Ba6#
- 1...Qc1
- Tries
- 1.Se3+?
- 1...Kd4
- 2.Qxd5#
- 1...Qxe3!
- 1...Kd4
- 1.Qa5?
- threat
- 2.Qb4#
- 2.Qb5#
- 1...Qd2
- 2.Ba6#
- 2.Qb5#
- 2.Qa6#
- 1...Qa6
- 2.Bxa6#
- 2.Qb4#
- 2.Qxa6#
- 1...Qc6
- 2.Qb4#
- 1...Qd6
- 2.Qb5#
- 1...Bd6
- 2.Ba6#
- 2.Qb5#
- 2.Qa6#
- 1...Sc3
- 2.Rxc3#
- 2.Rb4#
- 2.Qxc3#
- 2.Qb4#
- 2.Qc5#
- 1...Sd6
- 2.Rc3#
- 2.Qc3#
- 2.Qb4#
- 2.Qc7#
- 2.Qc5#
- 1...d4
- 2.Qb5#
- 1...Qb6!
- threat
- 1.Qb6?
- threat
- 2.Ba6#
- 2.Qd4#
- 2.Qb4#
- 2.Qb5#
- 1...d4
- 2.Qxd4#
- 2.Qb5#
- 1...Qd2
- 2.Ba6#
- 2.Qb5#
- 2.Qa6#
- 1...Qe3
- 2.Sxe3#
- 2.Ba6#
- 2.Qb4#
- 2.Qb5#
- 2.Qa6#
- 1...Qc6
- 2.Se3#
- 2.Qd4#
- 2.Qb4#
- 1...Qd6
- 2.Se3#
- 2.Ba6#
- 2.Qd4#
- 2.Qb5#
- 1...Qf6
- 2.Se3#
- 2.Ba6#
- 2.Qb4#
- 2.Qb5#
- 1...Rb2
- 2.Ba6#
- 2.Qb4#
- 2.Qb5#
- 1...Rd2
- 2.Ba6#
- 2.Qb4#
- 2.Qb5#
- 1...Be5
- 2.Ba6#
- 2.Qb4#
- 2.Qb5#
- 1...Bd6
- 2.Ba6#
- 2.Qd4#
- 2.Qb5#
- 2.Qa6#
- 1...Sc3
- 2.Rb4#
- 2.Qd4#
- 2.Qc5#
- 2.Qb4#
- 1...Sc5
- 2.Qxc5#
- 2.Qb4#
- 2.Qb5#
- 1...Sd6
- 2.Qd4#
- 2.Qc5#
- 2.Qc7#
- 2.Qb4#
- 2.Qc6#
- 1...Qxb6!
- threat
- 1.Qc7+?
- 1...Qc6
- 2.Ba6#
- 1...Sc5
- 2.Qxc5#
- 1...Bxc7!
- 1...Qc6
- 1.Se3+?
- Keys
- 1.Rd3!
- threat
- 2.Qxd5#
- 1...Qc6
- 2.Se3#
- 1...Qd6
- 2.Se3#
- 1...Qe6
- 2.Se3#
- 1...Bd6
- 2.Ba6#
- 1...Sd2
- 2.Rc1#
- 1...Sc3
- 2.Rd4#
- 1...Sc5
- 2.Rb4#
- 1...Sg5
- 2.Se3#
- 1...Sd6
- 2.Qc7#
- 1...Sf6
- 2.Ba6#
- 1...d4
- 2.Qxd4#
- threat
- 1.Rd3!
This anticipates 153263(1944)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD::B(G)
- Q(g);N_GUARD::B(G),XQ(g)
- B(c);S_CUTQ(g)::B(G)
- S(e);N_GUARD,S_CUTB(c),S_CUTQ(g)::QAR(H)
- S(e);S_CUTQ(g)::B(G)
- P(f);OGATE::QAR1(H),XP(f)
- P(h);S_CUTQ(g)::B(G)
- Tries
- Try
- S(F);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINP(f)::QAR1(H),XP(f)
- Refutation
- Q(g);XS(F)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(g);::QAR1(H)
- Q(g);::QAB1(H)
- P(f);::QAB1(H)
- Refutation
- Q(g);
- Try
- Q(H);
- Threat
- DUALS(4)
- Refutation
- Q(g);XQ(H)
- Try
- Q(H);CHECK
- Vars
- Q(g);P_SPINQ(g)::B(G)
- S(e);N_GUARD,P_SPINS(e)::QAR1(H),XS(e)
- Refutation
- B(c);XQ(H)
- Try
- Actual
- R(D);
- Threat
- QAB1(H),XP(f)
- Vars
- Q(g);N_GUARD::S(F)
- B(c);S_CUTQ(g)::B(G)
- S(e);N_GUARD,S_CUTQ(g),S_CUTR(a)::R(A)
- S(e);SBLOCK::R1(D)
- S(e);SBLOCK::R1(A)
- S(e);S_CUTQ(g)::S(F)
- S(e);N_GUARD,S_CUTB(c),S_CUTQ(g)::QAR(H)
- S(e);S_CUTQ(g)::B(G)
- P(f);OGATE::QAR1(H),XP(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).