MESON Chess Problem Database
Problem Display
PID: 263679 (2N2Q1b/1q3R1r/4k1n1/4P3/b1P2pKp/5n1B/4R2p/8 w - - 0 1)
Foschini, Ettore
4th HM., Bristol Times and Mirror, 1931
#2
8 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Kxf3#
- 1...Qxc8
- 2.Kxf3#
- 1...Qb2
- 2.Kxf3#
- 1...Qb4
- 2.Kxf3#
- 1...Qb5
- 2.Kxf3#
- 1...Qb6
- 2.Kxf3#
- 1...Qa7
- 2.Kxf3#
- 1...Qc7
- 2.Kxf3#
- 1...Qd7
- 2.Kxf3#
- 1...Qe7
- 2.Kxf3#
- 1...Qxf7
- 2.Qd6#
- 1...Qb8
- 2.Kxf3#
- 1...Rh5
- 2.Kxh5#
- 1...Rxf7
- 2.Qd6#
- 1...Rg7
- 2.Kh5#
- 1...Se1
- 2.Kg5#
- 1...Sd2
- 2.Kg5#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sg5
- 2.Kxg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Qa6
- Tries
- 1.Rxb7?
- threat
- 2.Kxf3#
- 2.Qd6#
- 2.Qf5#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Rxb7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Sxf8
- 2.Kxf3#
- 2.Kxf4#
- 1...Rc7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...h1Q
- 2.Qd6#
- 2.Qf5#
- 1...h1B
- 2.Qd6#
- 2.Qf5#
- 1...h1R
- 2.Qd6#
- 2.Qf5#
- 1...Rh5
- 2.Kxh5#
- 2.Qd6#
- 2.Qf7#
- 2.Qg8#
- 1...Rd7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Re7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Rf7
- 2.Qd6#
- 2.Qxf7#
- 1...Bc2
- 2.Qd6#
- 1...Bc6
- 2.Qd6#
- 2.Qf5#
- 1...Bd7
- 2.Kxf3#
- 2.Qf5#
- 1...Bf6
- 2.Kxf3#
- 2.Qd6#
- 2.Qxf6#
- 1...Se1
- 2.Kg5#
- 2.Qd6#
- 2.Qf5#
- 1...Sg1
- 2.Qd6#
- 2.Qf5#
- 1...Sd2
- 2.Kg5#
- 2.Qd6#
- 2.Qf5#
- 1...Sd4
- 2.Qd6#
- 1...Sg5
- 2.Kxg5#
- 2.Qd6#
- 2.Qf5#
- 1...Se7!
- threat
- 1.Rc7?
- threat
- 2.Qd6#
- 2.Qf5#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Qxc7
- 2.Kxf3#
- 2.Qf5#
- 1...Rxc7
- 2.Kh5#
- 2.Qf5#
- 1...Sxf8
- 2.Kxf4#
- 1...Qe4
- 2.Qd6#
- 1...Qd5
- 2.Qf5#
- 1...Qa6
- 2.Kxf3#
- 2.Qf5#
- 1...Qc6
- 2.Qf5#
- 1...Qb1
- 2.Qd6#
- 1...Qb4
- 2.Kxf3#
- 2.Qf5#
- 1...Qb6
- 2.Kxf3#
- 2.Qf5#
- 1...Rh5
- 2.Kxh5#
- 2.Qd6#
- 2.Qf7#
- 2.Qg8#
- 1...Rd7
- 2.Kh5#
- 2.Qf5#
- 1...Re7
- 2.Kh5#
- 2.Qf5#
- 1...Rf7
- 2.Qd6#
- 2.Qxf7#
- 1...Bc2
- 2.Qd6#
- 1...Bd7
- 2.Qf5#
- 1...Bf6
- 2.Qd6#
- 2.Qxf6#
- 1...Sd4
- 2.Qd6#
- 1...Se7!
- threat
- 1.Rd7?
- threat
- 2.Rd6#
- 2.Qd6#
- 2.Qf5#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Qxd7
- 2.Kxf3#
- 2.Qf5#
- 1...Rxd7
- 2.Kh5#
- 2.Qf5#
- 1...Bxd7
- 2.Qf5#
- 1...Sxf8
- 2.Kxf4#
- 1...Qe4
- 2.Qd6#
- 1...Se7
- 2.Rd6#
- 1...Qd5
- 2.Qf5#
- 1...Qa6
- 2.Kxf3#
- 2.Qf5#
- 1...Qc6
- 2.Qf5#
- 1...Qb1
- 2.Rd6#
- 2.Qd6#
- 1...Qb4
- 2.Kxf3#
- 2.Qf5#
- 1...Qb6
- 2.Kxf3#
- 2.Qf5#
- 1...Qc7
- 2.Kxf3#
- 2.Qf5#
- 1...Qb8
- 2.Kxf3#
- 2.Qf5#
- 1...Rh5
- 2.Kxh5#
- 2.Rd6#
- 2.Qd6#
- 2.Qf7#
- 1...Re7
- 2.Kh5#
- 2.Rd6#
- 2.Qf5#
- 1...Rf7
- 2.Rd6#
- 2.Qd6#
- 2.Qxf7#
- 1...Bc2
- 2.Rd6#
- 2.Qd6#
- 1...Bf6
- 2.Rd6#
- 2.Qd6#
- 1...Sd4
- 2.Rd6#
- 2.Qd6#
- 1...Kxd7!
- threat
- 1.Re7+?
- 1...Qxe7
- 2.Kxf3#
- 2.Qf5#
- 1...Rxe7
- 2.Kh5#
- 2.Qf5#
- 1...Sxe7!
- 1...Qxe7
- 1.Rg7?
- threat
- 2.Qd6#
- 2.Qf5#
- 2.Qf6#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Qxg7
- 2.Kxf3#
- 2.Qf5#
- 1...Rxg7
- 2.Kh5#
- 2.Qf5#
- 1...Bxg7
- 2.Qf5#
- 1...Sxf8
- 2.Kxf4#
- 1...Qe4
- 2.Qd6#
- 2.Qf6#
- 1...Qe7
- 2.Kxf3#
- 2.Qf5#
- 1...Qf7
- 2.Qd6#
- 2.Qxf7#
- 1...Qd5
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qa6
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qc6
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qb1
- 2.Qd6#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qb4
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qb6
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Qc7
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 1...Qd7
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 1...Qb8
- 2.Kxf3#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qg8#
- 1...Rh5
- 2.Kxh5#
- 2.Qd6#
- 2.Qf6#
- 1...Bc2
- 2.Qd6#
- 2.Qf6#
- 1...Sd4
- 2.Qd6#
- 2.Qf6#
- 1...Se7!
- threat
- 1.Rxh7?
- threat
- 2.Kh5#
- 2.Qd6#
- 2.Qf5#
- 1...Sfxe5+
- 2.Kg5#
- 2.Kh5#
- 1...Sgxe5+
- 2.Kxf4#
- 2.Kh5#
- 1...Qxh7
- 2.Kxf3#
- 2.Qf5#
- 1...Sxf8
- 2.Kxf4#
- 2.Kh5#
- 1...Qe4
- 2.Qd6#
- 1...Qe7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Qf7
- 2.Qd6#
- 2.Qxf7#
- 1...Qg7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Bg7
- 2.Kh5#
- 2.Qf5#
- 1...h1Q
- 2.Qd6#
- 2.Qf5#
- 1...h1R
- 2.Qd6#
- 2.Qf5#
- 1...Qd5
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Qa6
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Qc6
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Qb1
- 2.Qd6#
- 2.Qf7#
- 2.Qg8#
- 1...Qb4
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Qb6
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Qc7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Qd7
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 1...Qb8
- 2.Kxf3#
- 2.Kh5#
- 2.Qf5#
- 2.Qf7#
- 2.Qg8#
- 1...Bc2
- 2.Qd6#
- 1...Bf6
- 2.Kh5#
- 2.Qd6#
- 2.Qxf6#
- 1...Sg1
- 2.Qd6#
- 2.Qf5#
- 1...Sd4
- 2.Qd6#
- 1...Sg5
- 2.Kxg5#
- 2.Qd6#
- 2.Qf5#
- 1...Se7!
- threat
- 1.Qe8+?
- 1...Qe7
- 2.Kxf3#
- 1...Se7
- 2.Kxf4#
- 1...Bxe8!
- 1...Qe7
- 1.Rxb7?
- Keys
- 1.Qg8!
- threat
- 2.Re7#
- 1...Sfxe5+
- 2.Kg5#
- 1...Sgxe5+
- 2.Kxf4#
- 1...Qxc8
- 2.Kxf3#
- 1...Qxf7
- 2.Kxf3#
- 1...Rxf7
- 2.Kh5#
- 1...Bxe5
- 2.Qxg6#
- 1...Qe7
- 2.Kxf3#
- 2.Rxe7#
- 1...Se7
- 2.Rxe7#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 15
- Sets
- Q(h);::B(B)+K(D),XS(b)
- Q(h);XS(G)::B(B)+K(D),XS(b)
- Q(h);SBLOCK,XR(F)::QAR1(H)
- R(i);::B(B)+K(D),XR(i)
- R(i);SBLOCK,XR(F)::QAR1(H)
- R(i);::B(B)+K(D)
- S(b);::B(B)+K(D)
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(b);::B(B)+K(D),XS(b)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- Tries
- Try
- R(F);XQ(h)
- Threat
- DUALS(3)
- Vars
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- B(c);::QAR1(H)
- S(b);::QAR1(H)
- Refutation
- S(g);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- S(g);XQ(H)::B(B)+K(D),XP(d)
- Q(h);::QAR1(H)
- Q(h);::QAB1(H)
- B(c);::QAR1(H)
- B(c);::QAB1(H)
- S(b);::QAR1(H)
- Refutation
- S(g);
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- B(c);SBLOCK,XR(F)::QAB1(H)
- S(g);XQ(H)::B(B)+K(D),XP(d)
- Q(h);::QAR1(H)
- S(g);::R1(F)
- Q(h);::QAB1(H)
- Refutation
- K(f);S_FLIGHT,XR(F)
- Try
- R(F);CHECK
- Refutation
- S(g);XR(F)
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- B(j);XR(F)::QAB1(H)
- S(g);XQ(H)::B(B)+K(D),XP(d)
- Refutation
- S(g);
- Try
- R(F);XR(i)
- Threat
- DUALS(3)
- Vars
- Q(h);::QAR1(H)
- B(c);::QAR1(H)
- S(b);::QAR1(H)
- Refutation
- S(g);
- Try
- Q(H);CHECK
- Vars
- Q(h);P_SPINQ(h)::B(B)+K(D),XS(b)
- S(g);P_SPINS(g)::B(B)+K(D),XP(d)
- Refutation
- B(c);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- QAB(H)+R(F),DCHECK
- Vars
- S(b);CHECK,P_SPINS(b),XP(E)::B(B)+K(D)
- S(g);CHECK,P_SPINS(g),XP(E)::B(B)+K(D),XP(d)
- Q(h);XS(G)::B(B)+K(D),XS(b)
- Q(h);P_SPINQ(h),XR(F)::B(B)+K(D),XS(b)
- R(i);P_SPINR(i),XR(F)::B(B)+K(D)
- B(j);N_GUARD,P_SPINB(j),XP(E)::QAR2(H),XS(g)
- S(g);::QAB(H)+R(F),DCHECK,XS(g)
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).