MESON Chess Problem Database
Problem Display
PID: 101233 (N3n3/2pppR2/R1p1k1P1/2Q1N3/3P1b2/1p6/1K1p4/3b1r2 w - - 0 1)
Sim, Malcolm
Good Companions, 1922
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxe5
- 2.Qxe5#
- 1...Sd6
- 2.Sxc7#
- 1...Sg7
- 2.Sxc7#
- 1...d5
- 2.Qxe7#
- 1...Bxe5
- Tries
- 1.Sc4?
- threat
- 2.Qf5#
- 2.d5#
- 1...d5
- 2.Qxe7#
- 1...d6
- 2.Qf5#
- 1...Bc2
- 2.d5#
- 1...Bf3
- 2.Qf5#
- 1...Bg4
- 2.d5#
- 1...Bh2
- 2.d5#
- 1...Be3
- 2.Qe5#
- 2.d5#
- 1...Bg3
- 2.d5#
- 1...Be5
- 2.Qxe5#
- 1...Bg5
- 2.Qe5#
- 2.d5#
- 1...Bh6
- 2.Qe5#
- 2.d5#
- 1...Sd6
- 2.Sxc7#
- 1...Sf6
- 2.Rxe7#
- 1...Sg7
- 2.d5#
- 1...Bd6!
- threat
- 1.Sg4?
- threat
- 2.Rxe7#
- 2.d5#
- 1...d5
- 2.Qxe7#
- 1...d6
- 2.Qf5#
- 1...Bf3
- 2.Rxe7#
- 1...Be5
- 2.Qxe5#
- 1...Bg5
- 2.Qe5#
- 2.d5#
- 1...Bd6
- 2.Qc4#
- 1...Sd6
- 2.Sxc7#
- 1...Sf6
- 2.Rxe7#
- 1...Bxg4!
- threat
- 1.Sxc6?
- threat
- 2.Sd8#
- 2.d5#
- 1...d5
- 2.Qxe7#
- 1...d6
- 2.Qf5#
- 1...Bf3
- 2.Sd8#
- 1...Be5
- 2.Sd8#
- 2.Qxe5#
- 1...Sf6
- 2.Sd8#
- 2.Rxe7#
- 1...dxc6!
- threat
- 1.Sxd7?
- threat
- 2.Sf8#
- 2.Rxe7#
- 1...Be5
- 2.Sf8#
- 1...Bg5
- 2.Sf8#
- 1...Bd6
- 2.Sf8#
- 1...Bh6
- 2.Rxe7#
- 1...Sd6
- 2.Sf8#
- 1...Kxd7!
- threat
- 1.Rxc6+?
- 1...Sd6
- 2.Sxc7#
- 2.Qc4#
- 1...d6
- 2.Qc4#
- 1...dxc6!
- 1...Sd6
- 1.Qxc6+?
- 1...Sd6
- 2.Sxc7#
- 2.Qc4#
- 1...d6
- 2.Qc4#
- 1...dxc6!
- 1...Sd6
- 1.Sc4?
- Keys
- 1.Sd3!
- threat
- 2.d5#
- 1...d5
- 2.Qxe7#
- 1...d6
- 2.Qf5#
- 1...Bf3
- 2.Sxf4#
- 1...Be5
- 2.Qxe5#
- 1...Bd6
- 2.Qc4#
- 1...Sd6
- 2.Sxc7#
- 1...Sf6
- 2.Rxe7#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(e);OGATE,P_PINP(B),XS(D)::QAR1(C),XB(e)
- S(k);N_GUARD,N_SPINP(f)::S(H),XP(h)
- S(k);N_GUARD::S(H),XP(h)
- P(i);SBLOCK::QAR1(C),XP(j)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(i);SBLOCK::QAR1(C),XP(j)
- P(i);N_SPINP(f)::QAB1(C)
- B(a);::P(B)
- B(a);::QAB1(C)
- B(e);::P(B)
- B(e);N_GUARD,P_PINP(B)::QAR1(C),XB(e)
- S(k);N_GUARD,N_SPINP(f),S_CUTB(e)::S(H),XP(h)
- S(k);SBLOCK::R1(G),XP(j)
- S(k);::P(B)
- Refutation
- B(e);N_SPINP(f)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(i);SBLOCK::QAR1(C),XP(j)
- P(i);N_SPINP(f),SBLOCK::QAB1(C)
- B(a);::R1(G),XP(j)
- B(e);N_GUARD,P_PINP(B)::QAR1(C),XB(e)
- B(e);N_SPINP(f),SBLOCK,S_CUTP(i)::QAB(C)
- S(k);N_GUARD,N_SPINP(f),S_CUTB(e)::S(H),XP(h)
- S(k);::R1(G),XP(j)
- Refutation
- B(a);XS(D)
- Try
- S(D);XP(f)
- Threat
- DUALS(2)
- Vars
- P(i);SBLOCK::QAR1(C),XP(j)
- P(i);SBLOCK::QAB1(C)
- B(a);::R(E)+S(D),DCHECK
- Refutation
- P(i);P_SPINP(i),XS(D)
- Try
- S(D);XP(i)
- Threat
- DUALS(2)
- Vars
- B(e);P_PINP(B)::S(D)
- B(e);::S(D)
- B(e);N_SPINP(f)::S(D)
- B(e);::R1(G),XP(j)
- S(k);N_SPINP(f)::S(D)
- Refutation
- K(g);N_SPINP(f),P_SPINP(j),S_FLIGHT,XS(D)
- Try
- R(E);CHECK,XP(f)
- Vars
- P(i);P_SPINP(i)::QAB(C)
- Refutation
- P(i);XR(E)
- Try
- Q(C);CHECK,XP(f)
- Vars
- P(i);P_SPINP(i)::QAB(C)
- Refutation
- P(i);P_SPINP(i),XQ(C)
- Try
- Actual
- S(D);
- Threat
- P(B)
- Vars
- P(i);SBLOCK::QAR1(C),XP(j)
- P(i);N_SPINP(f),SBLOCK::QAB1(C)
- B(a);S_CUTR(b)::S(D),XB(e)
- B(e);N_GUARD,P_PINP(B)::QAR1(C),XB(e)
- B(e);N_SPINP(f),SBLOCK,S_CUTP(i)::QAB(C)
- S(k);N_GUARD,N_SPINP(f),S_CUTB(e)::S(H),XP(h)
- S(k);SBLOCK::R1(G),XP(j)
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).