MESON Chess Problem Database
Problem Display
PID: 247619 (1B6/4NK2/3NP3/8/pP1k1p2/P1nbn3/1Q6/3RR3 w - - 0 1)
Boswell, Edward
British Chess Magazine, 1932
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Qxc3#
- 1...Sxd1
- 2.Ba7#
- 1...Sf1
- 2.Ba7#
- 2.Re4#
- 1...Sc2
- 2.Ba7#
- 2.Re4#
- 1...Sg2
- 2.Ba7#
- 2.Re4#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 2.Re4#
- 1...Sg4
- 2.Ba7#
- 2.Re4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Re4#
- 1...Sf5
- 2.Ba7#
- 2.Re4#
- 1...Ke5
- Tries
- 1.Bc7?
- 1...Ke5
- 2.Qxc3#
- 1...Sxd1
- 2.Bb6#
- 1...Sf1
- 2.Bb6#
- 2.Re4#
- 1...Sc2
- 2.Bb6#
- 2.Re4#
- 1...Sg2
- 2.Bb6#
- 2.Re4#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 2.Re4#
- 1...Sg4
- 2.Bb6#
- 2.Re4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Re4#
- 1...Sf5
- 2.Bb6#
- 2.Re4#
- 1...f3!
- 1...Ke5
- 1.Rd2?
- 1...Ke5
- 2.Qxc3#
- 1...Sd1
- 2.Ba7#
- 2.Re4#
- 1...Sf1
- 2.Ba7#
- 2.Re4#
- 1...Sc2
- 2.Ba7#
- 2.Re4#
- 1...Sg2
- 2.Ba7#
- 2.Re4#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 2.Re4#
- 1...Sg4
- 2.Ba7#
- 2.Re4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Re4#
- 1...Sf5
- 2.Ba7#
- 2.Re4#
- 1...f3!
- 1...Ke5
- 1.Rxd3+?
- 1...Ke5
- 2.Sc6#
- 2.Sg6#
- 2.Rd5#
- 2.Qxc3#
- 1...Kxd3!
- 1...Ke5
- 1.Re2?
- 1...Ke5
- 2.Qxc3#
- 1...Sxd1
- 2.Ba7#
- 1...Sf1
- 2.Ba7#
- 2.Re4#
- 1...Sc2
- 2.Ba7#
- 2.Re4#
- 1...Sg2
- 2.Ba7#
- 2.Re4#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 2.Re4#
- 1...Sg4
- 2.Ba7#
- 2.Re4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Re4#
- 1...Sf5
- 2.Ba7#
- 2.Re4#
- 1...f3!
- 1...Ke5
- 1.Qa1?
- 1...Ke5
- 2.Qxc3#
- 1...Sxd1
- 2.Ba7#
- 1...Sf1
- 2.Ba7#
- 2.Re4#
- 1...Sc2
- 2.Ba7#
- 2.Re4#
- 1...Sg2
- 2.Ba7#
- 2.Re4#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 2.Re4#
- 1...Sg4
- 2.Ba7#
- 2.Re4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Re4#
- 1...Sf5
- 2.Ba7#
- 2.Re4#
- 1...f3!
- 1...Ke5
- 1.Qc2?
- 1...Ke5
- 2.Qxc3#
- 1...Scxd1
- 2.Qc5#
- 1...Sexd1
- 2.Ba7#
- 1...Sxc2
- 2.Ba7#
- 1...Sb1
- 2.Qc5#
- 1...Sa2
- 2.Qc5#
- 1...Se2
- 2.Qc5#
- 1...Se4
- 2.Sb5#
- 1...Sb5
- 2.Qc5#
- 1...Scd5
- 2.Sc6#
- 1...Sf1
- 2.Ba7#
- 2.Rxd3#
- 2.Qxd3#
- 1...Sg2
- 2.Ba7#
- 2.Rxd3#
- 2.Qxd3#
- 1...Sc4
- 2.Sdf5#
- 2.Rxd3#
- 2.Qxd3#
- 1...Sg4
- 2.Ba7#
- 2.Rxd3#
- 2.Qxd3#
- 1...Sed5
- 2.Sef5#
- 2.Sc6#
- 2.Rxd3#
- 2.Qxd3#
- 1...Sf5
- 2.Ba7#
- 2.Rxd3#
- 2.Qxd3#
- 1...f3!
- 1...Ke5
- 1.Qb3?
- threat
- 2.Sc6#
- 1...Ke5
- 2.Sc6#
- 2.Qxc3#
- 1...Sc4
- 2.Sdf5#
- 2.Qxc4#
- 1...axb3!
- threat
- 1.Bc7?
- Keys
- 1.Qc1!
- 1...Ke5
- 2.Qxc3#
- 1...Scxd1
- 2.Qc5#
- 1...Sexd1
- 2.Ba7#
- 1...f3
- 2.Qxe3#
- 1...Sb1
- 2.Qc5#
- 1...Sa2
- 2.Qc5#
- 1...Se2
- 2.Qc5#
- 1...Se4
- 2.Sb5#
- 1...Sb5
- 2.Qc5#
- 1...Scd5
- 2.Sc6#
- 1...Sf1
- 2.Ba7#
- 1...Sc2
- 2.Ba7#
- 1...Sg2
- 2.Ba7#
- 1...Sc4
- 2.Sdf5#
- 1...Sg4
- 2.Ba7#
- 1...Sed5
- 2.Sef5#
- 2.Sc6#
- 1...Sf5
- 2.Ba7#
- 1...Ke5
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- K(e);N_SPINB(b),S_FLIGHT::QAB(C),XS(a)
- S(c);N_SPINB(b),XR(A)::B(J)
- Tries
- Try
- B(J);
- Vars
- K(e);N_SPINB(b),S_FLIGHT::QAB(C),XS(a)
- S(c);N_SPINB(b),XR(A)::B(J)
- Refutation
- P(f);
- Try
- R(A);
- Vars
- K(e);N_SPINB(b),S_FLIGHT::QAB(C),XS(a)
- Refutation
- P(f);
- Try
- R(A);CHECK,XB(b)
- Refutation
- K(e);N_SPINS(a),P-FLIGHT,XR(A)
- Try
- R(B);
- Vars
- K(e);N_SPINB(b),S_FLIGHT::QAB(C),XS(a)
- S(c);N_SPINB(b),XR(A)::B(J)
- Refutation
- P(f);
- Try
- Q(C);
- Vars
- K(e);N_SPINB(b),S_FLIGHT::QAB(C),XS(a)
- S(c);N_SPINB(b),XR(A)::B(J)
- Refutation
- P(f);
- Try
- Q(C);N_PINS(a)
- Vars
- K(e);N_SPINB(b),P_SPINS(c),S_FLIGHT::QAB(C),XS(a)
- S(a);N_SPINB(b),OGATE,XR(A)::QAB1(C)
- S(c);N_SPINB(b),XR(A)::B(J)
- S(c);XQ(C)::B(J)
- S(a);OGATE::QAB1(C)
- S(a);N_GUARD,SBLOCK::S(F)
- S(a);SBLOCK::S(H)
- Refutation
- P(f);
- Try
- Q(C);N_PINS(a)
- Threat
- S(H)
- Refutation
- P(d);XQ(C)
- Try
- Actual
- Q(C);N_PINS(a)
- Vars
- K(e);N_SPINB(b),P_SPINS(c),S_FLIGHT::QAB(C),XS(a)
- S(a);N_SPINB(b),OGATE,XR(A)::QAB1(C)
- S(c);N_SPINB(b),XR(A)::B(J)
- P(f);N_GUARD::QAB1(C),XS(c)
- S(a);OGATE::QAB1(C)
- S(a);N_GUARD,SBLOCK::S(F)
- S(a);SBLOCK::S(H)
- S(c);::B(J)
- S(c);N_GUARD,SBLOCK::S(F)
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).