MESON Chess Problem Database
Problem Display
PID: 6698 (2KB3n/8/p1kNBR2/r4p2/PP1pN3/nPq5/8/1bR4Q w - - 0 1)
Larsen, Karl Adolf Koefoed
1st Prize, Vejle Socialdemokrat, 1932
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Bd7#
- 1...Rd5
- Tries
- 1.Sxc3+?
- 1...Rd5
- 2.Bxd5#
- 2.Bd7#
- 2.Qxd5#
- 1...Be4
- 2.Bd7#
- 1...Kxd6!
- 1...Rd5
- 1.Sc4?
- threat
- 2.Sxa5#
- 2.Bf7#
- 2.Bg8#
- 1...Qxb4
- 2.Sxa5#
- 2.Se5#
- 1...Qxc4
- 2.Bxc4#
- 2.Bf7#
- 2.Bg8#
- 1...Bxe4
- 2.Bf7#
- 2.Bg8#
- 1...Sxc4
- 2.Bxc4#
- 1...fxe4
- 2.Bf7#
- 2.Bg8#
- 1...Qg3
- 2.Sxa5#
- 2.Se5#
- 1...Rb5
- 2.Bf7#
- 2.Bg8#
- 1...Rc5
- 2.Bf7#
- 2.Bg8#
- 1...Rd5
- 2.Bd7#
- 1...Re5
- 2.Sxe5#
- 1...Sb5
- 2.Sxa5#
- 2.Se5#
- 1...Sf7
- 2.Sxa5#
- 2.Bxf7#
- 1...d3
- 2.Sxa5#
- 2.Sc5#
- 1...Rxa4!
- threat
- 1.Sb5?
- threat
- 2.Sxd4#
- 2.Sa7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rxa4
- 2.Sxd4#
- 2.Sa7#
- 2.Bc4#
- 1...Rxb5
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Bxe4
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...fxe4
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...axb5
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc4
- 2.Sxd4#
- 2.Sa7#
- 2.Bxc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc5
- 2.Sxd4#
- 2.Sa7#
- 2.Bf7#
- 2.Bg8#
- 2.Rxc5#
- 1...Bc2
- 2.Sa7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Sc2
- 2.Sexc3#
- 2.Sa7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Sc4
- 2.Sa7#
- 2.Bxc4#
- 1...Sf7
- 2.Sxd4#
- 2.Sa7#
- 2.Bxf7#
- 1...d3
- 2.Sd2#
- 2.Sf2#
- 2.Sexc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sed6#
- 2.Sd4#
- 2.Sa7#
- 2.Bf7#
- 2.Bg8#
- 1...Sxb5!
- threat
- 1.Sxf5?
- threat
- 2.Sxd4#
- 2.Se7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rxa4
- 2.Sxd4#
- 2.Bc4#
- 1...Bxe4
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc4
- 2.Sxd4#
- 2.Se7#
- 2.Bxc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc5
- 2.Sxd4#
- 2.Se7#
- 2.Bf7#
- 2.Bg8#
- 1...Rc5
- 2.Se7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rd5
- 2.Se7#
- 2.Bd7#
- 1...Re5
- 2.Sxd4#
- 2.Se7#
- 1...Bc2
- 2.Se7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Sc2
- 2.Se7#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Sc4
- 2.Se7#
- 2.Bxc4#
- 1...Sb5
- 2.Se7#
- 1...Sg6
- 2.Sxd4#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Sf7
- 2.Sxd4#
- 2.Se7#
- 2.Bxf7#
- 1...d3
- 2.Sc5#
- 2.Sd4#
- 2.Se7#
- 2.Bf7#
- 2.Bg8#
- 1...Rxf5!
- threat
- 1.Sb7?
- threat
- 2.Sxa5#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rxa4
- 2.Bc4#
- 1...Bxe4
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...fxe4
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc4
- 2.Sxa5#
- 2.Bxc4#
- 2.Bf7#
- 2.Bg8#
- 1...Qc5
- 2.Sxa5#
- 2.Bf7#
- 2.Bg8#
- 1...Rb5
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rc5
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...Rd5
- 2.Bd7#
- 1...Sc4
- 2.Bxc4#
- 1...Sb5
- 2.Sxa5#
- 1...Sf7
- 2.Sxa5#
- 2.Bxf7#
- 1...d3
- 2.Sec5#
- 2.Sxa5#
- 2.Bf7#
- 2.Bg8#
- 1...Re5!
- threat
- 1.Qh7?
- threat
- 2.Qb7#
- 2.Qc7#
- 2.Qd7#
- 1...Bxe4
- 2.Qc7#
- 2.Qd7#
- 1...fxe4
- 2.Qc7#
- 2.Qd7#
- 1...Rb5
- 2.Qc7#
- 2.Qd7#
- 1...Sb5
- 2.Qb7#
- 2.Qd7#
- 1...Sf7!
- threat
- 1.Sxc3+?
- Keys
- 1.Sf7!
- threat
- 2.Bc4#
- 1...Sxf7
- 2.Bxf7#
- 1...Qc4
- 2.Bxc4#
- 1...Qc5
- 2.Se5#
- 1...Rd5
- 2.Bd7#
- 1...Re5
- 2.Sxe5#
- 1...Sc4
- 2.Bxc4#
- 1...Sb5
- 2.Se5#
- 1...d3
- 2.Sc5#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK::B(H)
- Tries
- Try
- S(F);CHECK,XQ(c)
- Vars
- B(a);P_SPINB(a)::B(H)
- Refutation
- K(h);P-FLIGHT,XS(G)
- Try
- S(G);N_PINQ(c)
- Threat
- DUALS(3)
- Vars
- S(b);OGATE,XS(G)::R(I)+B(H),XS(b)
- R(e);SBLOCK::R(I)+B(H),DCHECK
- R(e);N_GUARD::S(G),XR(e)
- Refutation
- R(e);XP(D)
- Try
- S(G);
- Threat
- DUALS(5)
- Refutation
- S(b);XS(G)
- Try
- S(G);XP(f)
- Threat
- DUALS(5)
- Vars
- S(b);::S(G)
- Refutation
- R(e);XS(G)
- Try
- S(G);
- Threat
- DUALS(4)
- Vars
- R(e);XP(D)::R(I)+B(H)
- R(e);SBLOCK::R(I)+B(H),DCHECK
- S(b);N_SPINQ(c)::R(I)+B(H),XS(b)
- S(b);::S(G),XR(e)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- S(i);
- Try
- Actual
- S(G);
- Threat
- R(I)+B(H)
- Vars
- S(i);OGATE,XS(G)::R(I)+B(H),XS(i)
- Q(c);::R(I)+B(H),XQ(c)
- Q(c);S_CUTR(e)::S(G)
- R(e);SBLOCK::R(I)+B(H),DCHECK
- R(e);N_GUARD::S(G),XR(e)
- S(b);N_SPINQ(c)::R(I)+B(H),XS(b)
- S(b);S_CUTR(e)::S(G)
- P(d);S_CUTB(a)::QAB(B)+S(F)
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