MESON Chess Problem Database
Problem Display
PID: 57527 (1B6/R2p3q/7b/1K3p2/1NPkBp1N/1Q3p2/6rn/4Rb2 w - - 0 1)
Ricciardi, Aldechi
2nd Prize, Il Due Mosse, 0000
#2
9 + 10
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1953 |
SOLUTION
- SOUND
- Sets
- 1...Qg8
- 2.Sxf5#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Rg1
- 2.Sc2#
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Rc2
- 2.Sxc2#
- 1...Re2
- 2.Qd3#
- 1...Rg3
- 2.Sc2#
- 2.Qb2#
- 1...Rg4
- 2.Sc2#
- 2.Qb2#
- 1...Rg5
- 2.Sc2#
- 2.Qb2#
- 1...Rg6
- 2.Sc2#
- 2.Sxf5#
- 2.Qb2#
- 1...Rg7
- 2.Sc2#
- 2.Qb2#
- 1...Rg8
- 2.Sc2#
- 2.Qb2#
- 1...Bd3
- 2.Qxd3#
- 1...Bxc4+
- 2.Qxc4#
- 1...Bg7
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 1...f2
- 2.Sc2#
- 2.Qb2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qg8
- Tries
- 1.Sxg2?
- threat
- 2.Sc2#
- 2.Qb2#
- 1...Bxc4+
- 2.Qxc4#
- 1...d6
- 2.Sc6#
- 2.Qb2#
- 1...Bd3
- 2.Qb2#
- 2.Qxd3#
- 1...Be2!
- threat
- 1.Bb1?
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Re2
- 2.Qd3#
- 1...Bg7
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 1...d6
- 2.Sc6#
- 1...Be2!
- threat
- 1.Bc2?
- threat
- 2.Be5#
- 2.Qb2#
- 1...Bxc4+
- 2.Qxc4#
- 1...Rxc2
- 2.Sxc2#
- 2.Be5#
- 1...Qe7
- 2.Sxf5#
- 2.Qb2#
- 1...Qg7
- 2.Sxf5#
- 2.Qb2#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 2.Qb2#
- 1...Re2
- 2.Qd3#
- 1...Bg7
- 2.Rxd7#
- 2.Qb2#
- 1...Sg4
- 2.Sxf3#
- 2.Qb2#
- 1...d6
- 2.Sc6#
- 2.Qb2#
- 1...Be2!
- threat
- 1.Bd3?
- threat
- 2.Be5#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Bg7
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 1...d6
- 2.Sc6#
- 1...Re2!
- threat
- 1.Bxf3?
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Sxf3
- 2.Sxf3#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Re2
- 2.Qd3#
- 1...Bg7
- 2.Rxd7#
- 1...d6
- 2.Sc6#
- 1...Sg4!
- threat
- 1.Bd5?
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 1...Re2
- 2.Qd3#
- 1...Sg4
- 2.Sxf3#
- 1...d6
- 2.Sc6#
- 1...Bg7!
- threat
- 1.Bxf5?
- threat
- 2.Be5#
- 2.Re4#
- 1...Qxf5+
- 2.Sxf5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Be2
- 2.Sc2#
- 1...Qg7
- 2.Re4#
- 1...Qh8
- 2.Re4#
- 2.Rxd7#
- 1...Re2
- 2.Qd3#
- 1...Bd3
- 2.Be5#
- 2.Qxd3#
- 1...Bg7
- 2.Re4#
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 2.Re4#
- 1...d5
- 2.Sc6#
- 2.Be5#
- 1...d6
- 2.Sc6#
- 2.Re4#
- 1...Qe7!
- threat
- 1.Bc6?
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...dxc6+
- 2.Sxc6#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Re2
- 2.Qd3#
- 1...Bg7
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 1...d6!
- threat
- 1.Bb7?
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 1...Re2
- 2.Qd3#
- 1...Sg4
- 2.Sxf3#
- 1...d6
- 2.Sc6#
- 1...Bg7!
- threat
- 1.Bxf4?
- threat
- 2.Qe3#
- 1...Bxc4+
- 2.Qxc4#
- 1...Re2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Sg4
- 2.Sxf3#
- 1...Bxf4!
- threat
- 1.Re2?
- threat
- 2.Sc2#
- 2.Qb2#
- 2.Qd3#
- 1...Rxe2
- 2.Qd3#
- 1...fxe2
- 2.Qd3#
- 1...fxe4
- 2.Sc2#
- 2.Qb2#
- 1...d6
- 2.Sc6#
- 2.Qb2#
- 1...Bxe2!
- threat
- 1.Ra3?
- threat
- 2.Qc3#
- 1...Bxc4+
- 2.Qxc4#
- 1...Re2
- 2.Qd3#
- 1...Rc2
- 2.Sxc2#
- 1...Be2!
- threat
- 1.Qd1+?
- 1...Kc3
- 2.Be5#
- 1...Bd3
- 2.Qxd3#
- 1...Rd2!
- 1...Kc3
- 1.Sxg2?
- Keys
- 1.Ba8!
- threat
- 2.Be5#
- 1...Bxc4+
- 2.Qxc4#
- 1...Be2
- 2.Sc2#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 2.Rxd7#
- 1...Re2
- 2.Qd3#
- 1...Bg7
- 2.Rxd7#
- 1...Sg4
- 2.Sxf3#
- 1...d6
- 2.Sc6#
- threat
- 1.Ba8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_GUARD::QAB(B),XR(b)
- R(b);N_GUARD::S(C),XR(b)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- B(h);S_CUTQ(j)::R(H),XP(i)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
- Tries
- Try
- S(F);XR(b)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(h);S_CUTQ(j)::R(H),XP(i)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- Refutation
- B(a);
- Try
- B(E);N_SPINP(D)
- Threat
- B(I)
- Vars
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- B(h);S_CUTQ(j)::R(H),XP(i)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
- Refutation
- R(b);
- Try
- B(E);XP(d)
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- S(c);XB(E)::S(F),XS(c)
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(h);S_CUTQ(j)::R(H),XP(i)
- P(i);N_GUARD::S(C)
- Refutation
- S(c);
- Try
- B(E);
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
- Refutation
- B(h);
- Try
- B(E);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,XB(E)::S(F),XQ(j)
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- B(a);S_CUTR(b)::S(C)
- Q(j);::R1(A)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- Refutation
- Q(j);
- Try
- B(E);
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- P(i);CHECK,XB(E)::S(C),XP(i)
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(h);S_CUTQ(j)::R(H),XP(i)
- S(c);N_GUARD::S(F),XP(d)
- Refutation
- P(i);
- Try
- B(E);
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
- Refutation
- B(h);
- Try
- B(I);XP(f)
- Threat
- QAB1(B)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- S(c);N_GUARD::S(F),XP(d)
- Refutation
- B(h);XB(I)
- Try
- R(A);N_SPINP(D)
- Threat
- DUALS(3)
- Vars
- R(b);XR(A)::QAR1(B)
- P(d);XR(A)::QAR1(B)
- Refutation
- B(a);P_PINP(D),XR(A)
- Try
- R(H);
- Threat
- QAB1(B)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- R(b);N_GUARD::S(C),XR(b)
- Refutation
- B(a);
- Try
- Q(B);CHECK
- Vars
- K(e);S_FLIGHT::B(I)
- B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
- Refutation
- R(b);P_SPINR(b)
- Try
- Actual
- B(E);
- Threat
- B(I)
- Vars
- B(a);CHECK,OGATE,XP(D)::QAR1(B),XB(a)
- B(a);S_CUTR(b)::S(C)
- Q(j);N_GUARD::S(F),XP(g)
- R(b);N_PINP(D),S_CUTB(a)::QAR1(B)
- B(h);S_CUTQ(j)::R(H),XP(i)
- S(c);N_GUARD::S(F),XP(d)
- P(i);N_GUARD::S(C)
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).