MESON Chess Problem Database
Problem Display
PID: 88219 (1K6/5Qpb/3BN3/1Nppp2r/R1n1k3/1n1rbR2/4P3/8 w - - 0 1)
Beal, Edward W
The Problemist, 1975
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sc3#
- 1...Rd2
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rd4
- 2.Sc3#
- 1...Bc1
- 2.exd3#
- 1...Bg1
- 2.exd3#
- 1...Bd2
- 2.exd3#
- 1...Bf2
- 2.exd3#
- 1...Bd4
- 2.exd3#
- 1...Bg5
- 2.exd3#
- 1...Bh6
- 2.exd3#
- 1...Sd4
- 2.Sxc5#
- 1...d4
- 2.Qb7#
- 1...Rd1
- Tries
- 1.Sxc5+?
- 1...Bxc5
- 2.exd3#
- 1...Sxc5!
- 1...Bxc5
- 1.Sg5+?
- 1...Bxg5
- 2.exd3#
- 1...Rxg5!
- 1...Bxg5
- 1.Bxc5?
- threat
- 2.Sd6#
- 1...Bxc5
- 2.exd3#
- 1...d4
- 2.Qb7#
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.exd3#
- 1...Sd4!
- threat
- 1.Bc7?
- threat
- 2.Sd6#
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.exd3#
- 1...Sd4
- 2.Sxc5#
- 1...d4!
- threat
- 1.Be7?
- threat
- 2.Sd6#
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.exd3#
- 1...Sd4
- 2.Sxc5#
- 1...d4!
- threat
- 1.Rxc4+?
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.exd3#
- 1...Sd4
- 2.Sxc5#
- 1...d4
- 2.Qb7#
- 1...dxc4!
- 1...Rd4
- 1.Qxh5?
- threat
- 2.Qxe5#
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.Sg5#
- 2.Qg4#
- 2.Qh4#
- 2.exd3#
- 1...Bf4
- 2.exd3#
- 1...Bg5
- 2.Sxg5#
- 2.exd3#
- 1...Bf5
- 2.Qxf5#
- 1...Sd4
- 2.Sxc5#
- 1...g5
- 2.Qxh7#
- 1...d4!
- threat
- 1.Sxc5+?
- Keys
- 1.Bf8!
- threat
- 2.Sd6#
- 1...d4
- 2.Qb7#
- 1...Rd4
- 2.Sc3#
- 1...Bd4
- 2.exd3#
- 1...Sd4
- 2.Sxc5#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::S(D)
- R(b);N_GUARD::S(D),XR(b)
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);::P(A),XR(b)
- B(c);N_SPINS(d)::P(A),XR(b)
- S(a);N_GUARD,N_SPINS(d),S_CUTB(c)::S(F),XP(f)
- P(g);N_SPINS(d),OGATEB::QAB(G)
- Tries
- Try
- S(F);CHECK,XP(f)
- Vars
- B(c);XS(F)::P(A),XR(b)
- Refutation
- S(a);XS(F)
- Try
- S(F);CHECK
- Vars
- B(c);XS(F)::P(A),XR(b)
- Refutation
- R(i);XS(F)
- Try
- B(E);XP(f)
- Threat
- S(D)
- Vars
- B(c);XB(E)::P(A),XR(b)
- P(g);N_SPINS(d),OGATEB::QAB(G)
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);N_SPINS(d)::P(A),XR(b)
- Refutation
- S(a);N_SPINS(d)
- Try
- B(E);
- Threat
- S(D)
- Vars
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);N_SPINS(d)::P(A),XR(b)
- S(a);N_GUARD,N_SPINS(d),S_CUTB(c)::S(F),XP(f)
- Refutation
- P(g);N_SPINS(d)
- Try
- B(E);
- Threat
- S(D)
- Vars
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);N_SPINS(d)::P(A),XR(b)
- S(a);N_GUARD,N_SPINS(d),S_CUTB(c)::S(F),XP(f)
- Refutation
- P(g);N_SPINS(d)
- Try
- R(C);CHECK,XS(d)
- Vars
- R(b);P_SPINR(b)::S(D)
- B(c);P_SPINB(c)::P(A),XR(b)
- S(a);P_SPINS(a)::S(F),XP(f)
- P(g);P_SPINP(g),S_CUTB(c),S_CUTR(b),S_CUTS(a)::QAB(G)
- Refutation
- P(g);XR(C)
- Try
- Q(G);XR(i)
- Threat
- QAR1(G),XP(h)
- Vars
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);::P(A),XR(b)
- B(k);N_GUARD::QAB1(G),XB(k)
- S(a);N_GUARD,N_SPINS(d),S_CUTB(c)::S(F),XP(f)
- P(j);N_GUARD::QAB(G),XB(k)
- Refutation
- P(g);N_SPINS(d)
- Try
- Actual
- B(E);
- Threat
- S(D)
- Vars
- P(g);N_SPINS(d),OGATEB::QAB(G)
- R(b);N_GUARD,N_SPINS(d)::S(D)
- B(c);N_SPINS(d)::P(A),XR(b)
- S(a);N_GUARD,N_SPINS(d),S_CUTB(c)::S(F),XP(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).