MESON Chess Problem Database
Problem Display
PID: 157254 (K2Q2n1/5Pb1/2p1r1b1/n1k5/R7/N2p2B1/1P3NB1/4q3 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Skakbladet, 1939
#2
9 + 9
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Qxa5#
- 2.b4#
- 1...Qa1
- 2.Qxa5#
- 2.b4#
- 1...Qb1
- 2.Qxa5#
- 1...Qc1
- 2.Qxa5#
- 2.b4#
- 1...Qd1
- 2.Qxa5#
- 2.b4#
- 1...Qf1
- 2.Qxa5#
- 2.b4#
- 1...Qg1
- 2.Qxa5#
- 2.b4#
- 1...Qh1
- 2.Qxa5#
- 2.b4#
- 1...Qe2
- 2.Qxa5#
- 2.b4#
- 1...Qe3
- 2.Qxa5#
- 2.b4#
- 1...Qe4
- 2.Qxa5#
- 1...Qe5
- 2.b4#
- 1...Re2
- 2.Bd6#
- 1...Re3
- 2.Bd6#
- 1...Re4
- 2.Sxd3#
- 1...Re5
- 2.Qd4#
- 1...Rd6
- 2.Bxd6#
- 1...Rf6
- 2.Qd4#
- 1...Re7
- 2.Bd6#
- 1...Re8
- 2.Bd6#
- 1...Bh5
- 2.Sxd3#
- 1...Bxf7
- 2.Sxd3#
- 1...Bd4
- 2.Qxd4#
- 1...Bh6
- 2.Qd4#
- 1...Bf8
- 2.Qd4#
- 1...Sb3
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb7
- 2.Rc4#
- 1...Sf6
- 2.Qd4#
- 1...d2
- 2.Qxa5#
- 2.b4#
- 1...Qxf2
- Tries
- 1.Bc7?
- threat
- 2.Bb6#
- 1...Sc4
- 2.Rxc4#
- 1...Qb4!
- threat
- 1.Bb8?
- threat
- 2.Ba7#
- 1...Re7
- 2.Bd6#
- 1...Sc4
- 2.Rxc4#
- 1...Qb4!
- threat
- 1.Rxa5+?
- 1...Kb4
- 2.Qb6#
- 1...Qxa5+!
- 1...Kb4
- 1.f8Q+?
- 1...Rd6
- 2.Bxd6#
- 2.Qfxd6#
- 1...Re7
- 2.Bd6#
- 1...Bxf8
- 2.Qd4#
- 1...Se7!
- 1...Rd6
- 1.f8B+?
- 1...Rd6
- 2.Bgxd6#
- 2.Bfxd6#
- 1...Re7
- 2.Bd6#
- 1...Bxf8
- 2.Qd4#
- 1...Se7!
- 1...Rd6
- 1.Bc7?
- Keys
- 1.f8S!
- threat
- 2.Sd7#
- 1...Bxf8
- 2.Qd4#
- 1...Qb4
- 2.Sxe6#
- 1...Qe4
- 2.Qxa5#
- 1...Qe5
- 2.b4#
- 1...Re4
- 2.Sxd3#
- 1...Re5
- 2.Qd4#
- 1...Rd6
- 2.Bxd6#
- 1...Re7
- 2.Bd6#
- 1...Be4
- 2.Sxe6#
- 1...Be8
- 2.Sxd3#
- 1...Be5
- 2.Sxe6#
- 1...Sc4
- 2.Rxc4#
- 1...Sf6
- 2.Qd4#
- threat
- 1.f8S!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::QAR2(I),XS(c)
- Q(a);N_GUARD::P(A)
- R(f);N_GUARD::B(E)
- R(f);S_CUTB(g)::S(B),XP(b)
- R(f);S_CUTB(h)::QAB1(I)
- R(f);N_GUARD::B(E),XR(f)
- R(f);N_GUARD,P_PINQ(I)::B(E)
- B(g);N_GUARD::S(B),XP(b)
- B(g);N_GUARD,XP(G)::S(B),XP(b)
- B(h);N_GUARD::QAB1(I),XB(h)
- B(h);N_GUARD::QAB1(I)
- S(c);N_GUARD::R1(F)
- S(c);N_GUARD::R1(F),XS(c)
- S(i);S_CUTB(h)::QAB1(I)
- Tries
- Try
- B(E);
- Threat
- B(E)
- Vars
- S(c);N_GUARD::R1(F),XS(c)
- Refutation
- Q(a);
- Try
- B(E);
- Threat
- B(E)
- Vars
- R(f);N_GUARD::B(E)
- S(c);N_GUARD::R1(F),XS(c)
- Refutation
- Q(a);
- Try
- R(F);CHECK,XS(c)
- Vars
- K(d);S_FLIGHT::QAR2(I)
- Refutation
- Q(a);CHECK,XR(F)
- Try
- P(G);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::B(E)
- B(h);XQ(G)::QAB1(I)
- Refutation
- S(i);P_SPINS(i)
- Try
- P(G);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::B(E)
- B(h);XB(G)::QAB1(I)
- Refutation
- S(i);P_SPINS(i)
- Try
- Actual
- P(G);
- Threat
- S(G)
- Vars
- B(h);N_GUARD,XS(G)::QAB1(I)
- Q(a);N_GUARD::S(G),XR(f)
- Q(a);N_GUARD::QAR2(I),XS(c)
- Q(a);N_GUARD::P(A)
- R(f);S_CUTB(g)::S(B),XP(b)
- R(f);S_CUTB(h)::QAB1(I)
- R(f);N_GUARD::B(E),XR(f)
- R(f);N_GUARD::B(E)
- B(g);S_CUTQ(a)::S(G),XR(f)
- B(g);N_GUARD::S(B),XP(b)
- B(h);S_CUTQ(a)::S(G),XR(f)
- S(c);N_GUARD::R1(F),XS(c)
- S(i);S_CUTB(h)::QAB1(I)
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).