MESON Chess Problem Database
Problem Display
PID: 266779 (3Q2n1/q4rn1/2NR4/p1p5/K1k1p3/6bB/8/3N4 w - - 0 1)
Bennett, Frederick
The Problemist, 1954
#2
6 + 9
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Sxa5#
- 1...Qb7
- 2.Sxa5#
- 1...Qe7
- 2.Sxa5#
- 1...Rf1
- 2.Bxf1#
- 1...Rf4
- 2.Se5#
- 1...Rb7
- 2.Bf1#
- 1...Rc7
- 2.Bf1#
- 1...Rd7
- 2.Bf1#
- 1...Re7
- 2.Bf1#
- 1...Be1
- 2.Se5#
- 1...Bf2
- 2.Se5#
- 2.Bf1#
- 1...Bf4
- 2.Bf1#
- 1...Bh4
- 2.Se5#
- 1...Be5
- 2.Sxe5#
- 1...Sf5
- 2.Bf1#
- 1...Sh5
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Se8
- 2.Be6#
- 1...Sf6
- 2.Bf1#
- 1...Qb8
- Tries
- 1.Rd3?
- threat
- 2.Sb2#
- 2.Se3#
- 2.Rc3#
- 2.Qd5#
- 1...Qd7
- 2.Sb2#
- 1...Rd7
- 2.Sb2#
- 1...Bd6
- 2.Sb2#
- 1...Rf2
- 2.Se3#
- 2.Rc3#
- 2.Qd5#
- 1...Qb6
- 2.Se3#
- 2.Rc3#
- 2.Qd5#
- 1...Qb8
- 2.Se3#
- 2.Sxa5#
- 2.Rc3#
- 2.Qd5#
- 1...Qb7
- 2.Se3#
- 2.Sxa5#
- 2.Rc3#
- 2.Qd5#
- 1...Rf3
- 2.Sb2#
- 2.Qd5#
- 1...Rf5
- 2.Sb2#
- 2.Se3#
- 2.Rc3#
- 1...Rb7
- 2.Se3#
- 2.Rc3#
- 2.Qd5#
- 1...Be1
- 2.Sb2#
- 2.Se3#
- 2.Se5#
- 2.Qd5#
- 1...Bf2
- 2.Sb2#
- 2.Se5#
- 2.Rc3#
- 2.Qd5#
- 1...Bf4
- 2.Sb2#
- 2.Rc3#
- 2.Qd5#
- 1...Be5
- 2.Se3#
- 2.Sxe5#
- 2.Qd5#
- 1...Sf5
- 2.Sb2#
- 2.Rc3#
- 2.Qd5#
- 1...Sf6
- 2.Sb2#
- 2.Se3#
- 2.Rc3#
- 1...Se7
- 2.Sb2#
- 2.Se3#
- 2.Rc3#
- 1...e3
- 2.Sb2#
- 2.Sxe3#
- 2.Rc3#
- 2.Qd5#
- 1...exd3!
- threat
- 1.Qxa5?
- threat
- 2.Sb2#
- 2.Se3#
- 1...Qxa5+
- 2.Sxa5#
- 1...Rf2
- 2.Se3#
- 1...Qb6
- 2.Se3#
- 2.Qc3#
- 1...Qb8
- 2.Se3#
- 2.Qc3#
- 1...Qb7
- 2.Se3#
- 2.Qc3#
- 1...Rf3
- 2.Sb2#
- 1...Rb7
- 2.Se3#
- 2.Bf1#
- 1...Bf2
- 2.Sb2#
- 2.Se5#
- 2.Bf1#
- 1...Bf4
- 2.Sb2#
- 2.Bf1#
- 1...Be5
- 2.Se3#
- 2.Sxe5#
- 1...Sf5
- 2.Sb2#
- 2.Bf1#
- 1...e3
- 2.Sb2#
- 2.Sxe3#
- 1...Bxd6!
- threat
- 1.Qg5?
- threat
- 2.Qc1#
- 2.Qd5#
- 1...Rf2
- 2.Qd5#
- 1...Rf3
- 2.Qd5#
- 1...Rf4
- 2.Se5#
- 2.Qd5#
- 1...Rf5
- 2.Qc1#
- 1...Be1
- 2.Se5#
- 2.Qd5#
- 1...Bf4
- 2.Bf1#
- 2.Qd5#
- 1...Be5
- 2.Sxe5#
- 1...Sf5
- 2.Bf1#
- 2.Qc1#
- 1...Sf6
- 2.Bf1#
- 2.Qc1#
- 1...Se7
- 2.Qc1#
- 1...e3
- 2.Qd5#
- 1...Bxd6!
- threat
- 1.Qb6?
- threat
- 2.Qb3#
- 2.Qb5#
- 1...Bxd6
- 2.Qb3#
- 1...Qb8
- 2.Sxa5#
- 1...Qa6
- 2.Qb3#
- 2.Qxa6#
- 1...Qb7
- 2.Sxa5#
- 1...Rf3
- 2.Qb5#
- 1...Rb7
- 2.Bf1#
- 1...Qxb6!
- threat
- 1.Qe7?
- threat
- 2.Qxe4#
- 1...Qxe7
- 2.Sxa5#
- 1...Rxe7
- 2.Bf1#
- 1...Rf4
- 2.Se5#
- 1...Bf2
- 2.Se5#
- 2.Bf1#
- 1...Be5
- 2.Sxe5#
- 1...Sf5
- 2.Bf1#
- 2.Qe6#
- 1...Se6
- 2.Bxe6#
- 2.Qxe6#
- 1...Sf6
- 2.Bf1#
- 1...e3
- 2.Qe4#
- 1...Sxe7!
- threat
- 1.Qb8?
- threat
- 2.Qb3#
- 2.Qb5#
- 1...Qxb8
- 2.Sxa5#
- 1...Bxd6
- 2.Qb3#
- 1...Qa6
- 2.Qb3#
- 1...Qb7
- 2.Sxa5#
- 1...Rf3
- 2.Qb5#
- 1...Rb7
- 2.Bf1#
- 1...Qb6!
- threat
- 1.Qe8?
- threat
- 2.Qxe4#
- 1...Sxe8
- 2.Be6#
- 1...Qe7
- 2.Sxa5#
- 1...Rf4
- 2.Se5#
- 1...Re7
- 2.Bf1#
- 1...Bf2
- 2.Se5#
- 2.Bf1#
- 1...Be5
- 2.Sxe5#
- 1...Sf5
- 2.Bf1#
- 2.Qe6#
- 1...Se6
- 2.Bxe6#
- 2.Qxe6#
- 1...Sf6
- 2.Bf1#
- 1...e3
- 2.Qe4#
- 1...Se7!
- threat
- 1.Rd3?
- Keys
- 1.Qh4!
- threat
- 2.Qxe4#
- 1...Bxh4
- 2.Se5#
- 1...Qe7
- 2.Sxa5#
- 1...Rf4
- 2.Se5#
- 1...Re7
- 2.Bf1#
- 1...Bf2
- 2.Se5#
- 2.Bf1#
- 1...Bf4
- 2.Bf1#
- 1...Be5
- 2.Sxe5#
- 1...Sf5
- 2.Bf1#
- 1...Se6
- 2.Bxe6#
- 1...Sf6
- 2.Bf1#
- threat
- 1.Qh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(f);N_GUARD::S(D),XP(d)
- R(g);N_GUARD::B(B),XR(g)
- R(g);S_CUTB(a)::S(D)
- R(g);N_GUARD::B(B)
- B(a);N_GUARD::S(D)
- B(a);S_CUTR(g)::B(B)
- B(a);N_GUARD::S(D),XB(a)
- S(h);S_CUTR(g)::B(B)
- S(h);N_GUARD::B(B)
- S(h);N_GUARD::B(B),XS(h)
- S(i);S_CUTR(g)::B(B)
- Tries
- Try
- R(E);
- Threat
- DUALS(4)
- Vars
- Q(f);P_PINS(D)::S(A)
- R(g);::S(A)
- B(a);::S(A)
- Refutation
- P(c);XR(E)
- Try
- Q(F);P_SPINQ(F),XP(d)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,XQ(F)::S(D),XQ(f)
- R(g);::S(A)
- Refutation
- B(a);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB1(F)
- R(g);::QAR(F)
- B(a);N_GUARD::S(D),XB(a)
- S(i);::QAR(F)
- P(c);::QAB1(F)
- Refutation
- B(a);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(a);XR(E)::QAB1(F)
- Q(f);N_GUARD::S(D),XP(d)
- R(g);::QAB1(F)
- R(g);N_GUARD::B(B)
- Refutation
- Q(f);XQ(F)
- Try
- Q(F);
- Threat
- QAR2(F),XP(c)
- Vars
- Q(f);N_GUARD,XQ(F)::S(D),XP(d)
- R(g);N_GUARD,XQ(F)::B(B)
- R(g);S_CUTB(a)::S(D)
- B(a);N_GUARD::S(D),XB(a)
- S(i);S_CUTR(g)::B(B)
- P(c);::QAR2(F)
- Refutation
- S(i);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XQ(F)::S(D),XP(d)
- B(a);XR(E)::QAB1(F)
- Q(f);::QAB1(F)
- Q(f);N_GUARD::S(D),XP(d)
- R(g);::QAB1(F)
- R(g);N_GUARD::B(B)
- Refutation
- Q(f);
- Try
- Q(F);
- Threat
- QAR2(F),XP(c)
- Vars
- S(h);N_GUARD,XQ(F)::B(B)
- Q(f);N_GUARD::S(D),XP(d)
- R(g);S_CUTB(a)::S(D)
- R(g);N_GUARD::B(B)
- B(a);N_GUARD::S(D),XB(a)
- S(i);S_CUTR(g)::B(B)
- P(c);::QAR2(F)
- Refutation
- S(i);
- Try
- Actual
- Q(F);P_PINP(c)
- Threat
- QAR2(F),XP(c)
- Vars
- B(a);N_GUARD,N_SPINP(c),XQ(F)::S(D)
- Q(f);N_GUARD::S(D),XP(d)
- R(g);N_SPINP(c),S_CUTB(a)::S(D)
- R(g);N_GUARD::B(B)
- B(a);N_SPINP(c),S_CUTR(g)::B(B)
- B(a);N_GUARD::S(D),XB(a)
- S(h);S_CUTR(g)::B(B)
- S(h);N_GUARD::B(B),XS(h)
- S(i);S_CUTR(g)::B(B)
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).