MESON Chess Problem Database
Problem Display
PID: 57417 (2BK4/2R1p3/1p2P3/3k1N2/1BN3nb/p3PP2/Q1R2n2/3r4 w - - 0 1)
Barclay, William A
Chess Life, 1956
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Bg3
- 2.Sxe7#
- 1...Sh1
- 2.e4#
- 1...Sd3
- 2.e4#
- 1...Sh3
- 2.e4#
- 1...Se5
- 2.Sxb6#
- 1...Sf6
- 2.Sxe7#
- 1...b5
- 2.Rc5#
- 1...Bg3
- Tries
- 1.Sd4?
- threat
- 2.Bb7#
- 2.Rd7#
- 1...Sxe3
- 2.Rd7#
- 1...Bg3
- 2.Bb7#
- 1...Se4
- 2.Bb7#
- 1...Se5
- 2.Sxb6#
- 1...Sf6
- 2.Bb7#
- 1...Rxd4!
- threat
- 1.Sg7?
- threat
- 2.Bb7#
- 1...Se5
- 2.Sxb6#
- 1...Sxe3!
- threat
- 1.Bc3?
- threat
- 2.Sb2#
- 2.Sd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sxb6#
- 2.Scd6#
- 1...Sxe3
- 2.Scxe3#
- 2.Sxb6#
- 2.Sfxe3#
- 1...Ra1
- 2.Sxb6#
- 1...Rb1
- 2.Sb2#
- 2.Sxb6#
- 1...Rd2
- 2.Sb2#
- 2.Sxd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sxb6#
- 2.Scd6#
- 1...Se5
- 2.Sxe5#
- 2.Sxb6#
- 1...b5
- 2.Sb2#
- 2.Sd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Scd6#
- 1...Rd4!
- threat
- 1.Bd6?
- threat
- 2.Sb2#
- 2.Sd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sxb6#
- 1...Sxe3
- 2.Scxe3#
- 2.Sxb6#
- 1...Ra1
- 2.Sxb6#
- 1...Rb1
- 2.Sb2#
- 2.Sxb6#
- 1...Rd2
- 2.Sb2#
- 2.Sxd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sxb6#
- 1...Rd3
- 2.Sxb6#
- 1...Rd4
- 2.Sxb6#
- 1...Se5
- 2.Sxe5#
- 2.Sxb6#
- 1...b5
- 2.Sb2#
- 2.Sd2#
- 2.Sxa3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Rc5#
- 1...exd6+!
- threat
- 1.Rd2+?
- 1...Sd3
- 2.e4#
- 1...Rxd2!
- 1...Sd3
- 1.Rd7+?
- 1...Kc6
- 2.Sxa3#
- 2.Scd6#
- 1...Kxe6!
- 1...Kc6
- 1.Qa1?
- threat
- 2.Sxb6#
- 1...Rd4
- 2.Qxd4#
- 1...b5
- 2.Sb6#
- 2.Rc5#
- 1...Rxa1!
- threat
- 1.Qb2?
- threat
- 2.Sxb6#
- 1...Rd4
- 2.Qxd4#
- 1...b5
- 2.Sb6#
- 2.Rc5#
- 1...axb2!
- threat
- 1.Qxa3?
- threat
- 2.Qa8#
- 1...Se5
- 2.Sxb6#
- 1...Ra1!
- threat
- 1.Sd4?
- Keys
- 1.Rxe7!
- threat
- 2.Bb7#
- 1...Kc6+
- 2.Scd6#
- 1...Bxe7+
- 2.Sxe7#
- 1...Se5
- 2.Sxb6#
- threat
- 1.Rxe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(e);N_GUARD::S(G),XP(h)
- S(b);N_GUARD::P(C)
- S(d);SBLOCK::QAB(A)+S(F),DCHECK,XP(g)
- S(d);S_CUTB(e)::S(G),XP(h)
- P(g);N_GUARD::R1(I)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- S(d);XP(C)::R(I)
- B(e);::B(J)
- S(b);::B(J)
- S(d);SBLOCK::QAB(A)+S(F),DCHECK,XP(g)
- S(d);::B(J)
- Refutation
- R(a);XS(G)
- Try
- S(G);
- Threat
- B(J)
- Vars
- S(d);SBLOCK::QAB(A)+S(F),DCHECK,XP(g)
- Refutation
- S(d);XP(C)
- Try
- B(E);
- Threat
- DUALS(7)
- Vars
- R(a);::QAB(A)+S(F),DCHECK,XP(g)
- Refutation
- R(a);
- Try
- B(E);
- Threat
- DUALS(6)
- Vars
- R(a);::QAB(A)+S(F),DCHECK,XP(g)
- Refutation
- P(h);CHECK,XB(E)
- Try
- R(B);CHECK
- Vars
- S(b);P_SPINS(b)::P(C)
- Refutation
- R(a);XR(B)
- Try
- R(I);CHECK
- Refutation
- K(f);P_PINR(I),S_FLIGHT,XP(H)
- Try
- Q(A);
- Threat
- S(F),XP(g)
- Vars
- R(a);N_GUARD::QAR1(A),XR(a)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- S(F),XP(g)
- Vars
- R(a);N_GUARD::QAR1(A),XR(a)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);XP(c)
- Threat
- QAB(A)
- Vars
- S(d);SBLOCK::S(F),XP(g)
- Refutation
- R(a);
- Try
- Actual
- R(I);P_SPINR(I),XP(h)
- Threat
- B(J)
- Vars
- K(f);CHECK,S_FLIGHT::R(B)+S(F)
- B(e);CHECK,XR(I)::S(G),XB(e)
- S(d);SBLOCK::QAB(A)+S(F),DCHECK,XP(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).