MESON Chess Problem Database
Problem Display
PID: 140816 (8/1KB3P1/8/p1Nk1p1R/2RN4/1B2bn1b/4P3/2n3r1 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Springaren, 2010
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.g8Q#
- 2.g8B#
- 1...Re1
- 2.g8Q#
- 2.g8B#
- 1...Rf1
- 2.g8Q#
- 2.g8B#
- 1...Rh1
- 2.g8Q#
- 2.g8B#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bxd4
- 2.Rxc1#
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.g8Q#
- 2.g8B#
- 1...Bh6
- 2.e4#
- 1...Bg2
- 2.g8Q#
- 2.g8B#
- 1...Bg4
- 2.g8Q#
- 2.g8B#
- 1...Rd1
- Tries
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Rxc1#
- 1...Bxc5
- 2.Rd4#
- 1...Sxe2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Rg4
- 2.Sc3#
- 1...Bd2
- 2.Rxc1#
- 2.e4#
- 1...Bd4
- 2.Rxc1#
- 2.e4#
- 1...Sa2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd3
- 2.Sc3#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd2
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Se5
- 2.Sc3#
- 1...a4
- 2.Sc3#
- 1...Sxb3!
- threat
- 1.Sxf5?
- threat
- 2.Sxe3#
- 2.Se7#
- 2.Rxc1#
- 1...Bxc5
- 2.Rd4#
- 1...Sxe2
- 2.Sxe3#
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sxb3
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 2.Se7#
- 1...Bd2
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 1...Bf2
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 1...Bd4
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 1...Bf4
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 1...Bg5
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Bh6
- 2.Se3#
- 2.Se7#
- 2.Rxc1#
- 2.e4#
- 1...Sa2
- 2.Sxe3#
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd3
- 2.Sxe3#
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd2
- 2.Sxe3#
- 2.Se7#
- 1...Sd4
- 2.Sxe3#
- 2.Se7#
- 1...Se5
- 2.Sxe3#
- 2.Se7#
- 1...a4
- 2.Sxe3#
- 2.Se7#
- 1...Bxf5!
- threat
- 1.Sc6?
- threat
- 2.Se7#
- 2.Rxc1#
- 1...Rxg7
- 2.Rxc1#
- 1...Bxc5
- 2.Rd4#
- 1...Sxe2
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Rg4
- 2.Se7#
- 1...Bg5
- 2.Rxc1#
- 2.g8Q#
- 2.g8B#
- 1...Sa2
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd3
- 2.Se7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 1...Sd2
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...a4
- 2.Sb4#
- 2.Se7#
- 1...Sxb3!
- threat
- 1.Sde6?
- threat
- 2.Rxc1#
- 2.Rd4#
- 1...Bxc5
- 2.Sf4#
- 2.Rd4#
- 1...Sxe2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rch4#
- 1...Rg4
- 2.Rd4#
- 1...Bd4
- 2.Sf4#
- 2.Rxc1#
- 2.Rxd4#
- 2.e4#
- 1...Sa2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rch4#
- 1...Sd3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rch4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...a4
- 2.Rd4#
- 1...Sxb3!
- threat
- 1.Rxf5+?
- 1...Se5
- 2.Rxe5#
- 1...Bxf5!
- 1...Se5
- 1.Sb5?
- Keys
- 1.Sc2!
- threat
- 2.Sxe3#
- 1...Bxc5
- 2.Rd4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bf4
- 2.e4#
- 1...Bg5
- 2.g8Q#
- 2.g8B#
- 1...Bh6
- 2.e4#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::P=Q
- B(c);OGATE::P(A)
- B(c);N_SPINP(h),S_CUTR(b)::P=Q
- B(e);S_CUTR(b)::P=Q
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(c);SBLOCK,XS(E)::B(B)+R(C),DCHECK
- R(b);::S(D)
- S(d);::S(D)
- S(d);N_SPINP(h)::S(D)
- P(f);::S(D)
- Refutation
- S(a);XB(B)
- Try
- S(D);XP(h)
- Threat
- DUALS(3)
- Vars
- B(c);SBLOCK,XS(E)::B(B)+R(C),DCHECK
- S(a);XB(B)::R(F)+S(D),DCHECK,XB(c)
- Refutation
- B(e);P_SPINB(e),XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(b);P_PINB(H),XP(I)::B(B)+R(C),XS(a)
- B(c);SBLOCK,XS(E)::B(B)+R(C),DCHECK
- R(b);::S(D)
- S(d);::S(D)
- S(d);N_SPINP(h)::S(D)
- Refutation
- S(a);XB(B)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(b);::B(B)+R(C),DCHECK
- S(d);::B(B)+R(C),DCHECK
- S(d);::B(B)+R(C),DCHECK,XS(d)
- S(d);N_SPINP(h)::B(B)+R(C),DCHECK
- P(f);::B(B)+R(C),DCHECK
- Refutation
- S(a);XB(B)
- Try
- R(F);CHECK,XP(h)
- Vars
- S(d);N_GUARD,P_SPINS(d)::R1(F),XS(d)
- Refutation
- B(e);XR(F)
- Try
- Actual
- S(D);
- Threat
- S(D),XB(c)
- Vars
- B(c);SBLOCK,XS(E)::B(B)+R(C),DCHECK
- B(c);OGATE::P(A)
- B(c);N_SPINP(h),S_CUTR(b)::P=Q
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).