MESON Chess Problem Database
Problem Display
PID: 235313 (4K3/2p5/b1p1N1n1/3p3R/r3kPP1/4Nrn1/2PQPb2/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Deutsche Schachzeitung, 1967
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Sc5#
- 1...Ra1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 1...Rc4
- 2.Qd3#
- 1...Rd4
- 2.Qxd4#
- 1...Ra5
- 2.Qd4#
- 1...Bd3
- 2.Qxd3#
- 2.cxd3#
- 2.exd3#
- 1...Bc4
- 2.Qd4#
- 1...Bb7
- 2.Qd3#
- 1...Bc8
- 2.Qd3#
- 1...Sxf4
- 2.Sc5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sf8
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Rxf4
- Tries
- 1.Sd1?
- threat
- 2.Sg5#
- 1...Rxf4
- 2.Sc3#
- 1...Rd3
- 2.Sxf2#
- 1...Re3
- 2.Sxf2#
- 1...Be3
- 2.Sc3#
- 1...Bd3
- 2.Sc3#
- 1...d4
- 2.Sc5#
- 1...Sxf4!
- threat
- 1.Sxd5?
- threat
- 2.Sf6#
- 2.Sg5#
- 1...Rxf4
- 2.Sc3#
- 1...Sxh5
- 2.Sg5#
- 1...Sxf4
- 2.Sf6#
- 1...cxd5
- 2.Sg5#
- 1...Rd3
- 2.Sf6#
- 1...Rd4
- 2.Sf6#
- 2.Sc5#
- 1...Bd3
- 2.Sc3#
- 2.Sf6#
- 1...Bd4!
- threat
- 1.Rf5?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Bxe3
- 2.Sg5#
- 1...Rc4
- 2.Sg5#
- 2.Qd3#
- 1...Ra5
- 2.Sg5#
- 2.Qd4#
- 1...Bd3
- 2.Qxd3#
- 2.cxd3#
- 2.exd3#
- 1...c5
- 2.Sxc5#
- 2.Sg5#
- 1...Sxf5!
- threat
- 1.c4?
- threat
- 2.Qd3#
- 2.Qd4#
- 1...Rxe3
- 2.Qd4#
- 1...Rxc4
- 2.Qd3#
- 1...Bxe3
- 2.Qc2#
- 2.Qd3#
- 1...Bxc4
- 2.Qd4#
- 1...Sxf4
- 2.Sc5#
- 2.Qd4#
- 1...dxc4
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 1...Sf5
- 2.Qd3#
- 1...Se5
- 2.Rxe5#
- 2.Qd4#
- 1...d4
- 2.Qd3#
- 2.Qxd4#
- 1...c5
- 2.Qd3#
- 1...Sxe2!
- threat
- 1.Sd1?
- Keys
- 1.Sc4!
- threat
- 2.Sg5#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Re3
- 2.Qd4#
- 1...Be3
- 2.Qd3#
- 1...d4
- 2.Sc5#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 16
- Sets
- R(b);SBLOCK,XP(E)::S(H)
- R(d);N_GUARD::QAR1(B)
- R(d);S_CUTB(g)::QAB1(B)
- R(d);N_GUARD::QAR1(B),XR(d)
- B(g);S_CUTR(d)::QAR1(B)
- B(g);N_GUARD::QAB1(B)
- S(i);SBLOCK,XP(E)::S(H)
- S(i);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- Tries
- Try
- S(D);
- Threat
- S(H)
- Vars
- R(b);N_GUARD,XP(E)::S(D)
- R(b);N_GUARD::S(D),XB(a)
- B(a);S_CUTR(b)::S(D)
- B(g);S_CUTR(b)::S(D)
- P(f);S_CUTB(a)::S(H)
- Refutation
- S(i);XP(E)
- Try
- S(D);XP(f)
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XP(E)::S(D)
- S(c);XR(G)::S(H)
- S(i);XP(E)::S(D)
- P(h);XS(D)::S(H)
- R(b);::S(D)
- Refutation
- B(a);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- B(a);XS(D)::S(H)
- Refutation
- S(c);XR(G)
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- R(b);XS(D)::QAR1(B)
- R(d);XP(A)::QAB1(B)
- B(g);XP(A)::QAR1(B)
- P(f);XP(A)::QAR1(B)
- R(d);::QAR1(B)
- S(c);::QAB1(B)
- P(h);::QAB1(B)
- Refutation
- S(c);XP(C)
- Try
- Actual
- S(D);
- Threat
- S(H)
- Vars
- R(b);S_CUTB(a)::QAR1(B)
- B(a);S_CUTR(b)::QAB1(B)
- P(f);S_CUTB(a)::S(H)
Developed and maintained by Brian Stephenson.
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