MESON Chess Problem Database
Problem Display
PID: 150554 (q2N4/r1n3p1/2Q5/4k1P1/r2R4/b3Bn1B/bPP5/5R1K w - - 0 1)
La Rosa, Massimo
Het Belgisch Schaakbord (L'Echiquier Belge), 1980
#2
10 + 9
| 6490 | yacpdb | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qxc6
- 2.Sxc6#
- 1...Qb8
- 2.Qe4#
- 1...Qc8
- 2.Qe4#
- 1...Qxd8
- 2.Qe4#
- 1...Rb4
- 2.Qd6#
- 1...Rc4
- 2.Sf7#
- 1...R4a5
- 2.Re4#
- 1...R4a6
- 2.Re4#
- 1...Rb7
- 2.Qe4#
- 1...Bb1
- 2.Sf7#
- 1...Bc4
- 2.Re4#
- 1...Bf7
- 2.Sxf7#
- 1...Bxb2
- 2.Qd6#
- 1...Bb4
- 2.Re4#
- 1...Bd6
- 2.Qxd6#
- 1...Se1
- 2.Rf5#
- 1...Sg1
- 2.Rf5#
- 1...Sd2
- 2.Rf5#
- 1...Sh2
- 2.Rf5#
- 1...Sxd4
- 2.Bf4#
- 1...Sxg5
- 2.Rf5#
- 1...Sd5
- 2.Qe6#
- 1...g6
- 2.Qf6#
- 1...Qxc6
- Tries
- 1.Qc5+?
- 1...Qd5
- 2.Sc6#
- 2.Sf7#
- 2.Bf4#
- 1...Bd5
- 2.Sf7#
- 2.Bf4#
- 1...Sd5
- 2.Bf4#
- 1...Bxc5!
- 1...Qd5
- 1.Qxc7+?
- 1...Bd6
- 2.Qxd6#
- 1...Rxc7!
- 1...Bd6
- 1.b3?
- threat
- 2.Sf7#
- 1...Qxd8
- 2.Qe4#
- 1...Sxg5
- 2.Rf5#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 1...Bxb3!
- threat
- 1.b4?
- threat
- 2.Re4#
- 2.Qd6#
- 1...Qxc6
- 2.Sxc6#
- 1...Qxd8
- 2.Re4#
- 2.Qe4#
- 1...Rxb4
- 2.Qd6#
- 1...Bxb4
- 2.Re4#
- 1...Sxd4
- 2.Bf4#
- 1...Sxg5
- 2.Rf5#
- 1...R4a6
- 2.Re4#
- 1...R7a6
- 2.Re4#
- 1...Se1
- 2.Rf5#
- 2.Re4#
- 1...Sg1
- 2.Rf5#
- 2.Re4#
- 1...Sd2
- 2.Rf5#
- 1...Sh2
- 2.Rf5#
- 2.Re4#
- 1...Sh4
- 2.Re4#
- 1...Sb5
- 2.Re4#
- 1...Sd5
- 2.Qe6#
- 1...Se8
- 2.Re4#
- 1...Bd5!
- threat
- 1.Qc5+?
- Keys
- 1.c4!
- threat
- 2.Sf7#
- 2.Re4#
- 1...Qxc6
- 2.Sxc6#
- 2.Sf7#
- 1...Qxd8
- 2.Re4#
- 2.Qe4#
- 1...Rxc4
- 2.Sf7#
- 1...Bxc4
- 2.Re4#
- 1...Sxd4
- 2.Sf7#
- 2.Bf4#
- 1...Sxg5
- 2.Rf5#
- 1...Bb1
- 2.Sf7#
- 1...Sd2
- 2.Sf7#
- 2.Rf5#
- 1...Sb5
- 2.Re4#
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Re4#
- 2.Qe6#
- 1...Se6
- 2.Re4#
- 2.Qxe6#
- 1...Se8
- 2.Re4#
- 2.Qe6#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 18
- Sets
- Q(i);XQ(I)::S(J),XQ(i)
- Q(i);N_GUARD::QAR1(I)
- Q(i);N_GUARD,XS(J)::QAR1(I)
- R(d);S_CUTB(b)::QAB1(I)
- R(d);S_CUTB(a)::S(J)
- R(d);N_GUARD::R1(G)
- R(f);S_CUTQ(i)::QAR1(I)
- B(a);N_GUARD::S(J)
- B(a);S_CUTR(d)::R1(G)
- B(a);N_GUARD::S(J),XB(a)
- B(b);N_GUARD,XP(C)::QAB1(I)
- B(b);S_CUTR(d)::R1(G)
- B(b);N_GUARD::QAB1(I),XB(b)
- S(c);OGATE,P_PINQ(I)::R1(A)
- S(c);P_PINQ(I),SBLOCK,XR(G)::B(E)
- S(c);OGATE,P_PINQ(I),XP(H)::R1(A)
- S(g);N_GUARD,S_CUTB(a)::QAR1(I)
- P(h);N_GUARD::QAB1(I)
- Tries
- Try
- Q(I);CHECK
- Vars
- S(g);P_SPINS(g)::B(E)
- Refutation
- B(b);XQ(I)
- Try
- Q(I);CHECK,XS(g)
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(I),XB(b)
- Refutation
- R(f);XQ(I)
- Try
- P(C);
- Threat
- S(J)
- Vars
- Q(i);N_GUARD,XS(J)::QAR1(I)
- S(c);OGATE,P_PINQ(I),XP(H)::R1(A)
- S(g);N_GUARD::QAR1(I)
- S(g);N_GUARD::QAR1(I),XS(g)
- Refutation
- B(a);XP(C)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- Q(i);XQ(I)::S(J),XQ(i)
- R(d);XP(C)::QAB1(I)
- B(b);XP(C)::R1(G)
- S(c);P_PINQ(I),SBLOCK,XR(G)::B(E)
- S(c);OGATE,P_PINQ(I),XP(H)::R1(A)
- R(d);::R1(G)
- R(f);::R1(G)
- S(c);OGATE,P_PINQ(I)::R1(A)
- S(c);P_PINQ(I)::R1(G)
- S(g);::R1(G)
- S(g);N_GUARD,S_CUTB(a)::QAR1(I)
- Refutation
- B(a);
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- R(d);XP(D)::S(J)
- B(a);XP(D)::R1(G)
- S(c);OGATE,P_PINQ(I),XP(H)::R1(A)
- B(a);::S(J)
- S(g);N_GUARD::QAR1(I)
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).