MESON Chess Problem Database
Problem Display
PID: 107814 (8/1Kp1Qb2/B1P2P2/3kB2r/R3N3/1p4n1/5P2/b2nr3 w - - 0 1)
Brogi, Giuseppe
3rd Place, Match: Brazil - Italy, 1961-1962
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe4
- 2.Ra5#
- 1...Rxe5
- 2.Qd7#
- 1...Bd4
- 2.Rxd4#
- 1...Bxe5
- 2.Qxf7#
- 1...Be6
- 2.Qc5#
- 1...Sb2
- 2.Sc3#
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sxe4
- 2.Bc4#
- 1...b2
- 2.Rd4#
- 1...Rxe4
- Tries
- 1.Sc3+?
- 1...Sxc3
- 2.Rd4#
- 1...Bxc3!
- 1...Sxc3
- 1.Bxa1?
- threat
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Rxe4
- 2.Ra5#
- 1...Sxe4
- 2.Bc4#
- 2.Rd4#
- 1...Re5
- 2.Rd4#
- 2.Qxe5#
- 2.Qd7#
- 1...Rh7
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qe5#
- 2.Qd7#
- 1...Be6
- 2.Qc5#
- 1...Bg6
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 1...Be8
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 1...Bg8
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Se2
- 2.Bc4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Sf5
- 2.Bc4#
- 2.Ra5#
- 2.Qe5#
- 2.Qxf7#
- 1...b2!
- threat
- 1.Bb2?
- threat
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Rxe4
- 2.Ra5#
- 1...Sxb2
- 2.Sc3#
- 1...Sxe4
- 2.Bc4#
- 2.Rd4#
- 1...Re5
- 2.Rd4#
- 2.Qxe5#
- 2.Qd7#
- 1...Rh7
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qe5#
- 2.Qd7#
- 1...Be6
- 2.Qc5#
- 1...Bg6
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 1...Be8
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 1...Bg8
- 2.Bc4#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 2.Rd4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Se2
- 2.Bc4#
- 2.Ra5#
- 2.Qd7#
- 2.Qxf7#
- 1...Sf5
- 2.Bc4#
- 2.Ra5#
- 2.Qe5#
- 2.Qxf7#
- 1...Bxb2!
- threat
- 1.Bxc7?
- threat
- 2.Qd6#
- 2.Qd7#
- 2.Qxf7#
- 1...Rxe4
- 2.Qd6#
- 1...Re5
- 2.Qd6#
- 2.Qd7#
- 1...Rh7
- 2.Qd6#
- 2.Qd7#
- 1...Bd4
- 2.Bc4#
- 1...Be5
- 2.Qxf7#
- 1...Be6
- 2.Qc5#
- 2.Qd6#
- 1...Bg6
- 2.Qd6#
- 2.Qd7#
- 1...Be8
- 2.Qd6#
- 1...Bg8
- 2.Qd6#
- 2.Qd7#
- 1...Sf5
- 2.Qxf7#
- 1...Sxe4!
- threat
- 1.Bd3?
- threat
- 2.Ra5#
- 1...Rxe5
- 2.Qd7#
- 1...Bxe5
- 2.Qxf7#
- 1...Sxe4
- 2.Bc4#
- 1...Bd4
- 2.Rxd4#
- 1...Sc3
- 2.Rd4#
- 1...Bc3!
- threat
- 1.f4?
- threat
- 2.Qd7#
- 2.Qxf7#
- 1...Rxe4
- 2.Ra5#
- 1...Rxe5
- 2.Qd7#
- 1...Bxe5
- 2.Qxf7#
- 1...Sxe4
- 2.Bc4#
- 1...Bd4
- 2.Rxd4#
- 1...Rh7
- 2.Qd7#
- 1...Be6
- 2.Qc5#
- 1...Bg6
- 2.Qd7#
- 1...Bg8
- 2.Qd7#
- 1...Sf5
- 2.Qxf7#
- 1...Be8!
- threat
- 1.Sc3+?
- Keys
- 1.f3!
- threat
- 2.Bc4#
- 2.Ra5#
- 1...Rxe4
- 2.Ra5#
- 1...Rxe5
- 2.Qd7#
- 1...Bxe5
- 2.Qxf7#
- 1...Sxe4
- 2.Bc4#
- 1...Be6
- 2.Ra5#
- 2.Qc5#
- 1...Bc3
- 2.Bc4#
- 1...Bd4
- 2.Bc4#
- 2.Rxd4#
- 1...Sb2
- 2.Sc3#
- 2.Rd4#
- 2.Ra5#
- 1...Sc3
- 2.Bc4#
- 2.Rd4#
- 1...Se3
- 2.Ra5#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(c);SBLOCK,XS(C)::R(B)
- R(g);SBLOCK,XB(D)::QAR2(I)
- B(a);N_GUARD::R1(B),XB(a)
- B(a);SBLOCK,XB(D)::QAB(I),XB(i)
- B(i);SBLOCK::QAR1(I)
- S(b);S_CUTB(a)::R1(B)
- S(e);SBLOCK,XS(C)::B(E)
- P(d);S_CUTB(a)::R1(B)
- Tries
- Try
- S(C);CHECK
- Vars
- S(b);XS(C)::R1(B)
- Refutation
- B(a);XS(C)
- Try
- B(D);XB(a)
- Threat
- DUALS(5)
- Vars
- R(c);XS(C)::R(B)
- B(i);SBLOCK::QAR1(I)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- Refutation
- P(d);
- Try
- B(D);
- Threat
- DUALS(5)
- Vars
- R(c);XS(C)::R(B)
- S(b);N_GUARD,XB(D)::S(C)
- B(i);SBLOCK::QAR1(I)
- S(b);N_GUARD::S(C),XS(b)
- Refutation
- B(a);XB(D)
- Try
- B(D);XP(h)
- Threat
- DUALS(3)
- Vars
- R(c);XS(C)::QAR1(I)
- B(a);SBLOCK::B(E)
- B(a);::QAB(I),XB(i)
- B(i);::QAR1(I)
- S(e);::QAB(I),XB(i)
- Refutation
- S(e);XS(C)
- Try
- B(E);
- Threat
- R(B)
- Vars
- R(g);SBLOCK,XB(D)::QAR2(I)
- B(a);SBLOCK,XB(D)::QAB(I),XB(i)
- S(e);SBLOCK,XS(C)::B(E)
- B(a);N_GUARD::R1(B),XB(a)
- S(b);S_CUTB(a)::R1(B)
- Refutation
- B(a);
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XS(C)::R(B)
- R(g);XB(D)::QAR2(I)
- B(a);XB(D)::QAB(I),XB(i)
- S(e);SBLOCK,XS(C)::B(E)
- B(a);N_GUARD::R1(B),XB(a)
- R(g);::QAR2(I)
- B(i);SBLOCK::QAR1(I)
- B(i);::QAR2(I)
- S(e);::QAB(I),XB(i)
- Refutation
- B(i);
- Try
- Actual
- P(A);
- Threat
- DUALS(2)
- Vars
- R(c);XS(C)::R(B)
- R(g);SBLOCK,XB(D)::QAR2(I)
- B(a);SBLOCK,XB(D)::QAB(I),XB(i)
- S(e);XS(C)::B(E)
- B(a);::B(E)
- S(b);::R(B)
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