MESON Chess Problem Database
Problem Display
PID: 201365 (b5Nn/q1rnRB2/3P2p1/pRbp1k2/5ppP/4B3/3N2Q1/7K w - - 0 1)
Belli, Nicolo
Good Companions, 1922
#2
10 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Qe4#
- 1...Bxe3
- 2.Qe4#
- 1...Bb4
- 2.Qe4#
- 1...Bd4
- 2.Qe4#
- 1...Bb6
- 2.Qe4#
- 1...Bxd6
- 2.Qe4#
- 1...Se5
- 2.Be6#
- 1...Sf6
- 2.Sh6#
- 1...fxe3
- 2.Qf1#
- 1...g3
- 2.Qh3#
- 1...Ba3
- Tries
- 1.Sb1?
- threat
- 2.Qc2#
- 1...Bxe3
- 2.Qe4#
- 1...Bxd6
- 2.Qe4#
- 1...fxe3
- 2.Qf1#
- 1...g3
- 2.Qh3#
- 1...Ba3
- 2.Qe4#
- 1...Bb4
- 2.Qe4#
- 1...Bd4
- 2.Qe4#
- 1...Bb6
- 2.Qe4#
- 1...Se5
- 2.Be6#
- 1...Sf6
- 2.Sh6#
- 1...d4!
- threat
- 1.Sc4?
- threat
- 2.Be6#
- 2.Qc2#
- 1...Sxf7
- 2.Qc2#
- 1...fxe3
- 2.Qf1#
- 1...g3
- 2.Be6#
- 2.Qh3#
- 1...d4
- 2.Be6#
- 1...Se5
- 2.Be6#
- 2.Rxe5#
- 1...Sf6
- 2.Sh6#
- 2.Be6#
- 2.Re5#
- 1...Sf8
- 2.Re5#
- 2.Qc2#
- 1...f3
- 2.Qc2#
- 1...g5
- 2.Qc2#
- 1...dxc4!
- threat
- 1.Bxg6+?
- 1...Kxg6
- 2.Qxg4#
- 1...Sxg6!
- 1...Kxg6
- 1.Re6?
- threat
- 2.Sh6#
- 2.Se7#
- 1...Bxd6
- 2.Sh6#
- 2.Qe4#
- 1...fxe3
- 2.Qf1#
- 1...g3
- 2.Sh6#
- 2.Qh3#
- 1...Se5
- 2.Sh6#
- 2.Rf6#
- 1...Sb6
- 2.Sh6#
- 1...Sf6
- 2.Sh6#
- 1...Sb8
- 2.Sh6#
- 1...Sf8
- 2.Sh6#
- 1...Sxf7!
- threat
- 1.Qf1?
- threat
- 2.Qd3#
- 2.Qb1#
- 2.Qxf4#
- 1...Bxe3
- 2.Qd3#
- 1...Bxd6
- 2.Qd3#
- 1...g3
- 2.Qh3#
- 2.Qxf4#
- 1...Ba3
- 2.Qd3#
- 2.Qxf4#
- 1...Bb4
- 2.Qd3#
- 2.Qxf4#
- 1...Bd4
- 2.Qd3#
- 2.Qxf4#
- 1...Bb6
- 2.Qd3#
- 2.Qxf4#
- 1...Se5
- 2.Be6#
- 2.Qxf4#
- 1...Sf6
- 2.Sh6#
- 2.Qxf4#
- 1...f3
- 2.Qd3#
- 2.Qb1#
- 1...g5
- 2.Qd3#
- 2.Qb1#
- 1...d4+!
- threat
- 1.Qxd5+?
- 1...Se5
- 2.Be6#
- 2.Rxe5#
- 1...Bxd5+!
- 1...Se5
- 1.Sb1?
- Keys
- 1.Sb3!
- threat
- 2.Qc2#
- 1...Bxe3
- 2.Qe4#
- 1...Bxd6
- 2.Qe4#
- 1...fxe3
- 2.Qf1#
- 1...g3
- 2.Qh3#
- 1...d4
- 2.Sxd4#
- 1...Ba3
- 2.Qe4#
- 1...Bb4
- 2.Qe4#
- 1...Bd4
- 2.Qe4#
- 1...Bb6
- 2.Qe4#
- 1...Se5
- 2.Be6#
- 1...Sf6
- 2.Sh6#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(d);P_SPINP(e)::QAB1(C)
- B(d);P_SPINP(e),XB(D)::QAB1(C)
- B(d);P_SPINP(e),XP(G)::QAB1(C)
- S(j);SBLOCK::B(I)
- S(j);SBLOCK::S(J)
- P(a);OGATEB,XB(D)::QAR(C)
- P(b);OGATEB::QAB(C)
- Tries
- Try
- S(B);
- Threat
- QAB(C)
- Vars
- B(d);P_SPINP(e),XB(D)::QAB1(C)
- B(d);P_SPINP(e),XP(G)::QAB1(C)
- P(a);OGATEB,XB(D)::QAR(C)
- P(b);OGATEB::QAB(C)
- B(d);P_SPINP(e)::QAB1(C)
- S(j);SBLOCK::B(I)
- S(j);SBLOCK::S(J)
- Refutation
- P(e);P_PINQ(C),P_SPINB(d)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- S(l);XB(I)::QAB(C)
- P(a);OGATEB,XB(D)::QAR(C)
- P(e);P_PINQ(C),P_SPINB(d)::B(I)
- P(a);::QAB(C)
- P(g);::QAB(C)
- Refutation
- P(e);P_PINQ(C),P_SPINB(d),XS(B)
- Try
- B(I);CHECK,XP(g)
- Vars
- K(f);P_SPINP(b),S_FLIGHT,XB(I)::QAR2(C),XP(b)
- Refutation
- S(l);XB(I)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- P(a);OGATEB,XB(D)::QAR(C)
- S(j);::S(J)
- Refutation
- S(l);XB(I)
- Try
- Q(C);P_PINP(a)
- Threat
- DUALS(3)
- Vars
- B(d);XB(D)::QAB(C)
- B(d);XP(G)::QAB(C)
- Refutation
- P(e);CHECK,P_SPINB(d)
- Try
- Q(C);CHECK,P_SPINQ(C),XP(e)
- Refutation
- B(k);CHECK,XQ(C)
- Try
- Actual
- S(B);
- Threat
- QAB(C)
- Vars
- B(d);P_SPINP(e),XB(D)::QAB1(C)
- B(d);P_SPINP(e),XP(G)::QAB1(C)
- P(a);OGATEB,XB(D)::QAR(C)
- P(b);OGATEB::QAB(C)
- P(e);P_PINQ(C),P_SPINB(d)::S(B),XP(e)
- B(d);P_SPINP(e)::QAB1(C)
- S(j);SBLOCK::B(I)
- S(j);SBLOCK::S(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).