MESON Chess Problem Database
Problem Display
PID: 141654 (b7/2R2nb1/1n1p4/1P1kNB1N/8/B3P2p/7Q/6K1 w - - 0 1)
Witt, Andreas
StrateGems, 2011
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxe5
- 2.Qh1#
- 1...Bf6
- 2.Sxf6#
- 1...Bh6
- 2.Sf6#
- 1...Bf8
- 2.Sf6#
- 1...Sxe5
- 2.Sf4#
- 1...dxe5
- 2.Qd2#
- 1...Bxe5
- Tries
- 1.Sd3?
- threat
- 2.Sb4#
- 2.Shf4#
- 2.Qh1#
- 1...Bc3
- 2.Shf4#
- 2.Qh1#
- 1...Be5
- 2.Sb4#
- 2.Qh1#
- 1...Bh6
- 2.Sb4#
- 2.Sf6#
- 2.Qh1#
- 1...Se5
- 2.Sb4#
- 2.Sdf4#
- 2.Shf4#
- 1...Sg5
- 2.Sb4#
- 2.Shf4#
- 2.Qxd6#
- 1...Bc6!
- threat
- 1.Sf3?
- threat
- 2.Sf4#
- 2.e4#
- 1...Bd4
- 2.Sf4#
- 1...Be5
- 2.e4#
- 1...Bh6
- 2.Sf6#
- 2.Qd2#
- 2.e4#
- 1...Sg5
- 2.Sf4#
- 2.Qxd6#
- 1...Bc6!
- threat
- 1.Sc4?
- threat
- 2.Sxb6#
- 2.Sf4#
- 2.Qh1#
- 1...Bc6
- 2.Sxb6#
- 1...Bd4
- 2.Sf4#
- 2.Qh1#
- 1...Be5
- 2.Sxb6#
- 2.Qh1#
- 1...Bh6
- 2.Sxb6#
- 2.Sf6#
- 2.Qh1#
- 2.Qd2#
- 1...Sa4
- 2.Sf4#
- 2.Qh1#
- 1...Sd7
- 2.Sf4#
- 2.Qh1#
- 1...Sc8
- 2.Sf4#
- 2.Qh1#
- 1...Se5
- 2.Sxb6#
- 2.Sf4#
- 1...Sg5
- 2.Sxb6#
- 2.Sf4#
- 2.Qxd6#
- 1...Sxc4!
- threat
- 1.Sg4?
- threat
- 2.Sf4#
- 2.Qh1#
- 1...Be5
- 2.Qh1#
- 1...Bh6
- 2.Sgf6#
- 2.Shf6#
- 2.Qh1#
- 2.Qd2#
- 1...Se5
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 2.Qxd6#
- 1...Bc6!
- threat
- 1.Sg6?
- threat
- 2.Shf4#
- 2.Se7#
- 2.Qh1#
- 1...Be5
- 2.Se7#
- 2.Qh1#
- 1...Bf6
- 2.Shf4#
- 2.Sxf6#
- 2.Qh1#
- 1...Bh6
- 2.Sf6#
- 2.Se7#
- 2.Qh1#
- 2.Qd2#
- 1...Bf8
- 2.Shf4#
- 2.Sf6#
- 2.Qh1#
- 2.Qd2#
- 1...Sc8
- 2.Shf4#
- 2.Qh1#
- 2.Qa2#
- 1...Se5
- 2.Shf4#
- 2.Sgf4#
- 2.Se7#
- 1...Sg5
- 2.Shf4#
- 2.Se7#
- 2.Qxd6#
- 1...Bc6!
- threat
- 1.Sd7?
- threat
- 2.Sf4#
- 2.Sxb6#
- 2.Qh1#
- 1...Bc6
- 2.Sxb6#
- 1...Bd4
- 2.Sf4#
- 2.Qh1#
- 1...Be5
- 2.Sxb6#
- 2.Qh1#
- 1...Bh6
- 2.Shf6#
- 2.Sxb6#
- 2.Sdf6#
- 2.Qh1#
- 2.Qd2#
- 1...Sa4
- 2.Sf4#
- 2.Qh1#
- 2.Qa2#
- 1...Sc4
- 2.Sf4#
- 2.Qh1#
- 1...Sc8
- 2.Sf4#
- 2.Qh1#
- 2.Qa2#
- 1...Se5
- 2.Sf4#
- 2.Sxb6#
- 1...Sg5
- 2.Sf4#
- 2.Sxb6#
- 2.Qxd6#
- 1...Sxd7!
- threat
- 1.Sxf7?
- threat
- 2.Sf4#
- 2.Qxd6#
- 2.Qh1#
- 1...Be5
- 2.Qh1#
- 1...Bh6
- 2.Sf6#
- 2.Qxd6#
- 2.Qh1#
- 2.Qd2#
- 1...Bf8
- 2.Sf4#
- 2.Sf6#
- 2.Qh1#
- 2.Qd2#
- 1...Sc4
- 2.Sf4#
- 2.Qh1#
- 1...Sc8
- 2.Sf4#
- 2.Qh1#
- 2.Qa2#
- 1...Bc6!
- threat
- 1.Bb2?
- threat
- 2.Sf4#
- 2.Qh1#
- 2.Qd2#
- 2.e4#
- 1...Bxe5
- 2.Qh1#
- 2.e4#
- 1...Sxe5
- 2.Sf4#
- 2.e4#
- 1...dxe5
- 2.Qd2#
- 1...Bh6
- 2.Sf6#
- 2.Qh1#
- 2.Qd2#
- 2.e4#
- 1...Sc4
- 2.Sf4#
- 2.Qh1#
- 2.e4#
- 1...Sg5
- 2.Sf4#
- 2.Qd2#
- 1...Bc6!
- threat
- 1.Be6+?
- 1...Ke4
- 2.Qf4#
- 1...Kxe6!
- 1...Ke4
- 1.Rc1?
- threat
- 2.Rd1#
- 1...Bxe5
- 2.Qh1#
- 1...Sxe5
- 2.Sf4#
- 1...dxe5
- 2.Qd2#
- 1...Sc4!
- threat
- 1.Rc2?
- threat
- 2.Rd2#
- 1...Bxe5
- 2.Qh1#
- 1...Sxe5
- 2.Sf4#
- 1...dxe5
- 2.Qd2#
- 1...Sc4!
- threat
- 1.Qf4?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Bxe5
- 2.Qf3#
- 2.Qe4#
- 1...dxe5
- 2.Qe4#
- 1...Sg5
- 2.Qd4#
- 1...h2+!
- threat
- 1.Qa2+?
- 1...Kxe5
- 2.Qe6#
- 1...Sc4!
- 1...Kxe5
- 1.Qb2?
- threat
- 2.Sf4#
- 2.Qd4#
- 2.e4#
- 1...Bxe5
- 2.e4#
- 1...dxe5
- 2.Qd2#
- 2.e4#
- 1...Bh6
- 2.Sf6#
- 2.Qd4#
- 2.e4#
- 1...Sg5
- 2.Sf4#
- 2.Qd4#
- 1...h2+!
- threat
- 1.Sd3?
- Keys
- 1.Rc3!
- threat
- 2.Rd3#
- 1...Bxe5
- 2.Qh1#
- 1...Sxe5
- 2.Sf4#
- 1...dxe5
- 2.Qd2#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- B(f);SBLOCK,XS(F)::QAB(B)
- B(f);N_GUARD::S(H),XB(f)
- B(f);N_GUARD::S(H)
- S(e);SBLOCK,XS(F)::S(H)
- P(d);SBLOCK,XS(F)::QAR(B)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Refutation
- B(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(f);P_PINP(D)::S(H)
- B(f);::P(D)
- Refutation
- B(g);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(g);::S(F),XS(c)
- Refutation
- S(c);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(f);::QAB(B)
- S(e);::S(H)
- Refutation
- B(g);
- Try
- S(F);
- Threat
- DUALS(3)
- Refutation
- B(g);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(g);::S(F),XS(c)
- Refutation
- S(c);XS(F)
- Try
- S(F);XS(e)
- Threat
- DUALS(3)
- Vars
- B(f);::QAB(B)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- P(d);XS(F)::QAR(B)
- Refutation
- B(g);
- Try
- B(G);CHECK
- Vars
- K(b);S_FLIGHT::QAR1(B)
- Refutation
- K(b);S_FLIGHT,XB(G)
- Try
- R(I);
- Threat
- R(I)
- Vars
- B(f);SBLOCK,XS(F)::QAB(B)
- S(e);SBLOCK,XS(F)::S(H)
- P(d);SBLOCK,XS(F)::QAR(B)
- Refutation
- S(c);
- Try
- R(I);
- Threat
- R(I)
- Vars
- B(f);SBLOCK,XS(F)::QAB(B)
- S(e);SBLOCK,XS(F)::S(H)
- P(d);SBLOCK,XS(F)::QAR(B)
- Refutation
- S(c);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(d);XS(F)::QAB1(B)
- S(e);::QAR1(B)
- Refutation
- P(a);CHECK
- Try
- Q(B);CHECK
- Vars
- K(b);OGATE,P-FLIGHT,XS(F)::QAR1(B)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(f);XS(F)::P(D)
- Refutation
- P(a);CHECK
- Try
- Actual
- R(I);
- Threat
- R(I)
- Vars
- B(f);SBLOCK,XS(F)::QAB(B)
- S(e);SBLOCK,XS(F)::S(H)
- P(d);SBLOCK,XS(F)::QAR(B)
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).