MESON Chess Problem Database
Problem Display
PID: 194049 (R1NBB3/bPp5/n4p1R/k1N5/1p6/1Pr5/2p5/2K1Q3 w - - 0 1)
Harris, D
2nd HM., Australian Columns, 1917
#2
10 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Sxb3#
- 1...Bb6
- 2.Rxa6#
- 1...Bb8
- 2.Rxa6#
- 1...Sb8
- 2.Bxc7#
- 1...f5
- 2.Rxa6#
- 1...Rxb3
- Tries
- 1.Bxc7+?
- 1...Bb6
- 2.Bxb6#
- 2.Rxa6#
- 1...Sxc7!
- 1...Bb6
- 1.Rxf6?
- threat
- 2.Rxa6#
- 1...Sxc5
- 2.Bxc7#
- 1...Bb6
- 2.Rxa6#
- 1...Sb8
- 2.Bxc7#
- 1...Rxc5!
- threat
- 1.Qe6?
- threat
- 2.Qxa6#
- 1...Sxc5
- 2.Bxc7#
- 1...Bb6
- 2.Rxa6#
- 1...Sb8
- 2.Bxc7#
- 1...Rxc5!
- threat
- 1.b8Q?
- threat
- 2.Sb7#
- 2.Qb5#
- 1...Bxc5
- 2.Qb5#
- 1...Bxb8
- 2.Sb7#
- 2.Rxa6#
- 1...Sxc5
- 2.Qb5#
- 1...Sxb8
- 2.Bxc7#
- 1...Bb6
- 2.Sb7#
- 2.Rxa6#
- 1...Rxc5!
- threat
- 1.b8S?
- threat
- 2.Sb7#
- 1...Bxc5
- 2.Rxa6#
- 1...Sxc5
- 2.Bxc7#
- 1...Sxb8
- 2.Bxc7#
- 1...Rxc5!
- threat
- 1.Bxc7+?
- Keys
- 1.Qe5!
- 1...Rxb3
- 2.Sxb3#
- 1...Rxc5
- 2.Qa1#
- 1...Bxc5
- 2.Bxc7#
- 1...Sxc5
- 2.Rxa7#
- 1...fxe5
- 2.Rxa6#
- 1...Rd3
- 2.Qa1#
- 1...Re3
- 2.Qa1#
- 1...Rf3
- 2.Qa1#
- 1...Rg3
- 2.Qa1#
- 1...Rh3
- 2.Qa1#
- 1...Rc4
- 2.Qa1#
- 1...Bb6
- 2.Rxa6#
- 1...Bb8
- 2.Rxa6#
- 1...Sb8
- 2.Bxc7#
- 2.Qxc7#
- 1...f5
- 2.Rxa6#
- 1...Rxb3
- 1.Qe5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 1
- Sets
- R(b);N_SPINP(h),P_SPINP(c),XP(C)::S(D),XR(b)
- B(g);N_SPINP(h),OGATE,P_SPINS(e)::R1(G),XS(e)
- B(g);OGATE,P_SPINS(e)::R1(G),XS(e)
- S(e);N_GUARD,P_SPINB(g)::B(I),XP(h)
- P(f);OGATE::R1(E),XS(e)
- Tries
- Try
- B(I);CHECK,XP(h)
- Refutation
- S(e);P_SPINB(g),XB(I)
- Try
- R(E);XP(f)
- Threat
- R1(E),XS(e)
- Vars
- S(e);N_GUARD,P_SPINB(g),XS(D)::B(I),XP(h)
- B(g);N_SPINP(h),OGATE,P_SPINS(e)::R1(G),XS(e)
- S(e);N_GUARD,P_SPINB(g)::B(I),XP(h)
- Refutation
- R(b);N_SPINP(h),P_SPINP(c),XS(D)
- Try
- Q(B);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);N_GUARD,P_SPINB(g),XS(D)::B(I),XP(h)
- B(g);N_SPINP(h),OGATE,P_SPINS(e)::R1(G),XS(e)
- S(e);N_GUARD,P_SPINB(g)::B(I),XP(h)
- Refutation
- R(b);XS(D)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- B(g);P_SPINS(e),XS(D)::QAR1(F)
- S(e);P_SPINB(g),XS(D)::QAR1(F)
- S(e);N_GUARD,P_SPINB(g),XQ(F)::B(I),XP(h)
- Refutation
- R(b);N_SPINP(h),P_SPINP(c),XS(D)
- Try
- P(F);
- Threat
- S(D)
- Vars
- B(g);OGATE,P_SPINS(e),XS(D)::R1(G),XS(e)
- S(e);N_GUARD,P_SPINB(g),XS(D)::B(I),XP(h)
- S(e);N_GUARD,P_SPINB(g),XS(F)::B(I),XP(h)
- Refutation
- R(b);N_SPINP(h),P_SPINP(c),XS(D)
- Try
- Actual
- Q(B);
- Vars
- R(b);XP(C)::QAR(B)+S(D),DCHECK,XR(b)
- R(b);OGATE,P_SPINR(b),XS(D)::QAR(B)
- B(g);N_GUARD,P_SPINB(g),P_SPINS(e),XS(D)::B(I),XP(h)
- S(e);OGATEB,P_SPINB(g),P_SPINS(e),XS(D)::R(G),XB(g)
- P(f);OGATE,XQ(B)::R1(E),XS(e)
- R(b);OGATE::QAR(B)
- B(g);N_SPINP(h),OGATE,P_SPINS(e)::R1(G),XS(e)
- B(g);OGATE,P_SPINS(e)::R1(G),XS(e)
- P(f);OGATE::R1(E),XS(e)
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).