MESON Chess Problem Database
Problem Display
PID: 42046 (8/6Q1/1r1pBN2/Np1PkbR1/pP6/B2n2P1/2R2P2/1K6 w - - 0 1)
Barnes, Barry Peter
2nd Prize, Polish Republic-25 JT, 1969
#2
12 + 7
| 3335 | Cyclone | 2000 |
| 4199 | Barnes about Chess Problems | 2001 |
| 56 | The Problemist | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Sxc6#
- 1...Rb7
- 2.Sc6#
- 1...Rb8
- 2.Sc6#
- 1...Sc1
- 2.Bb2#
- 1...Se1
- 2.Bb2#
- 1...Sb2
- 2.Bxb2#
- 1...Sxf2
- 2.Bb2#
- 1...Sxb4
- 2.Bb2#
- 1...Sf4
- 2.Bb2#
- 1...Sc5
- 2.Bb2#
- 1...Rc6
- Tries
- 1.Sb3?
- threat
- 2.Re2#
- 2.Rxf5#
- 1...Sxf2
- 2.Bb2#
- 2.Rxf5#
- 1...Sxb4
- 2.Bb2#
- 2.Rxf5#
- 2.f4#
- 1...Sc1
- 2.Bb2#
- 2.Rxf5#
- 2.f4#
- 1...Se1
- 2.Bb2#
- 2.Rxf5#
- 2.f4#
- 1...Sb2
- 2.Bxb2#
- 2.Rxf5#
- 2.f4#
- 1...Sf4
- 2.Bb2#
- 2.Rxf5#
- 1...Sc5
- 2.Bb2#
- 2.Rxf5#
- 2.f4#
- 1...axb3!
- threat
- 1.Rd2?
- 1...Sc1+
- 2.Rxf5#
- 1...Se1+
- 2.Rxf5#
- 1...Sb2+
- 2.Rxf5#
- 1...Sxf2+
- 2.Rxf5#
- 1...Sxb4+
- 2.Rxf5#
- 1...Sf4+
- 2.Rxf5#
- 1...Sc5+
- 2.Rxf5#
- 1...Kd4
- 2.Bb2#
- 1...Rc6
- 2.Sxc6#
- 1...Rb7
- 2.Sc6#
- 1...Rb8
- 2.Sc6#
- 1...Ra6!
- 1...Sc1+
- 1.Rc4?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Re4#
- 2.Rxf5#
- 1...Sc1+
- 2.Se4#
- 2.Re4#
- 2.Rxf5#
- 1...Se1+
- 2.Se4#
- 2.Re4#
- 2.Rxf5#
- 1...Sb2+
- 2.Se4#
- 2.Re4#
- 2.Rxf5#
- 1...Sxf2+
- 2.Se4#
- 2.Rxf5#
- 1...Sxb4+
- 2.Se4#
- 2.Re4#
- 2.Rxf5#
- 1...Sf4+
- 2.Se4#
- 2.Re4#
- 2.Rxf5#
- 1...Sc5+
- 2.Se4#
- 2.Rxf5#
- 1...Rb7
- 2.Sc6#
- 2.Sg4#
- 2.Sd7#
- 2.Re4#
- 2.Rxf5#
- 1...bxc4!
- threat
- 1.Qc7?
- threat
- 2.Qc3#
- 1...Kd4
- 2.Qc3#
- 1...Kxf6
- 2.Qg7#
- 1...Sc5
- 2.Bb2#
- 1...Rc6!
- threat
- 1.f3?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Rb7
- 2.Sc6#
- 2.Sg4#
- 2.Sd7#
- 1...Kd4!
- threat
- 1.f4+?
- 1...Sxf4
- 2.Bb2#
- 1...Kd4!
- 1...Sxf4
- 1.Sb3?
- Keys
- 1.Qa7!
- 1...Kd4
- 2.Sc6#
- 1...Kxf6
- 2.Qg7#
- 1...Sxf2
- 2.Bb2#
- 1...Sxb4
- 2.Bb2#
- 1...Ra6
- 2.Rxf5#
- 1...Rc6
- 2.Rxf5#
- 1...Rb7
- 2.Rxf5#
- 1...Rb8
- 2.Rxf5#
- 1...Sc1
- 2.Bb2#
- 1...Se1
- 2.Bb2#
- 1...Sb2
- 2.Bxb2#
- 1...Sf4
- 2.Bb2#
- 1...Sc5
- 2.Bb2#
- 1...Kd4
- 1.Qa7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::S(G),XR(f)
- R(f);N_GUARD::S(G)
- S(a);N_GUARD,P_PINR(B)::B(D)
- S(a);N_GUARD,P_PINR(B)::B(D),XS(a)
- S(a);N_GUARD,P_PINR(B),XP(C)::B(D)
- S(a);N_GUARD,P_PINR(B),XP(F)::B(D)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Refutation
- P(b);XS(G)
- Try
- R(B);
- Vars
- S(a);CHECK::R1(I),XB(e)
- S(a);CHECK,XP(C)::R1(I),XB(e)
- S(a);CHECK,XP(F)::R1(I),XB(e)
- K(d);N_SPINB(e),P_SPINS(a),S_FLIGHT::B(D)
- R(f);N_GUARD::S(G),XR(f)
- R(f);N_GUARD::S(G)
- Refutation
- R(f);
- Try
- R(B);
- Threat
- DUALS(9)
- Refutation
- P(c);P_PINP(F),XR(B)
- Try
- Q(L);P_PINP(g)
- Threat
- QAB(L)
- Vars
- K(d);N_SPINB(e),N_SPINP(g),S_FLIGHT::QAB1(L)
- K(d);N_SPINB(e),N_SPINP(g),OGATEB,S_FLIGHT,XS(K)::QAB1(L)
- S(a);N_GUARD,P_PINR(B)::B(D)
- Refutation
- R(f);
- Try
- P(C);
- Threat
- DUALS(7)
- Refutation
- K(d);N_SPINB(e),S_FLIGHT
- Try
- P(C);CHECK
- Vars
- S(a);P_PINR(B),XP(C)::B(D)
- Refutation
- K(d);N_SPINB(e),S_FLIGHT
- Try
- Actual
- Q(L);
- Vars
- K(d);N_SPINB(e),P_SPINR(f),S_FLIGHT::S(G)
- K(d);N_SPINB(e),OGATEB,S_FLIGHT,XS(K)::QAB1(L)
- S(a);N_GUARD,P_PINR(B),XP(C)::B(D)
- S(a);N_GUARD,P_PINR(B),XP(F)::B(D)
- R(f);::R1(I),XB(e)
- S(a);N_GUARD,P_PINR(B)::B(D)
- S(a);N_GUARD,P_PINR(B)::B(D),XS(a)
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).