MESON Chess Problem Database
Problem Display
PID: 59266 (qb1Rb3/8/3nPQ1p/1B2N3/r3k3/2B1P3/2P2P1N/4n2K w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1979
#2
11 + 8
| 3750 | FIDE Album (1977-1979) | 1984 |
| 5402 | German Solving Championship | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Qf4#
- 1...Sxc2
- 2.Qf3#
- 1...Sg2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sc4
- 2.Rd4#
- 2.Qf4#
- 1...Sxb5
- 2.Qf4#
- 1...Sb7
- 2.Qf4#
- 1...Sf7
- 2.Qf4#
- 2.Qg6#
- 1...Sc8
- 2.Qf4#
- 1...Qd5
- Tries
- 1.Sd3?
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qe5#
- 2.Qf5#
- 1...Sxd3
- 2.Qf3#
- 1...Sxb5
- 2.Sc5#
- 1...Qd5
- 2.Qf4#
- 1...Sf3
- 2.Qxf3#
- 1...Sc4
- 2.Sc5#
- 2.Rd4#
- 1...Sf5
- 2.Sc5#
- 1...Sf7
- 2.Sc5#
- 2.Qg6#
- 1...Sc8
- 2.Sc5#
- 1...Sb7!
- threat
- 1.Sef3?
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qe5#
- 2.Qf5#
- 1...Sxf3
- 2.Qxf3#
- 1...Sxb5
- 2.Sd2#
- 1...Qd5
- 2.Qf4#
- 1...Sc4
- 2.Rd4#
- 1...Sf5
- 2.Sd2#
- 1...Sb7
- 2.Sd2#
- 1...Sf7
- 2.Sd2#
- 2.Qg6#
- 1...Sc8
- 2.Sd2#
- 1...Sd3!
- threat
- 1.Sc4?
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qe5#
- 2.Qf5#
- 1...Sxc4
- 2.Rd4#
- 1...Sxb5
- 2.Sd2#
- 1...Qd5
- 2.Qf4#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Sd2#
- 1...Sb7
- 2.Sd2#
- 2.Rd4#
- 1...Sf7
- 2.Sd2#
- 2.Rd4#
- 2.Qg6#
- 1...Sc8
- 2.Sd2#
- 2.Rd4#
- 1...Sxc2!
- threat
- 1.Sf7?
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qe5#
- 2.Qf5#
- 1...Sxb5
- 2.Qg6#
- 1...Sxf7
- 2.Qg6#
- 1...Qd5
- 2.Qf4#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sc4
- 2.Rd4#
- 2.Qg6#
- 1...Sb7
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- threat
- 1.Bd3+?
- 1...Sxd3
- 2.Qf3#
- 1...Kd5!
- 1...Sxd3
- 1.Rxd6?
- threat
- 2.Qf4#
- 1...Sg2
- 2.Bd3#
- 2.Qf3#
- 1...Sd3
- 2.Bxd3#
- 2.Qf3#
- 2.cxd3#
- 1...Bxd6!
- threat
- 1.Sd3?
- Keys
- 1.Sd7!
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qe5#
- 1...Sxb5
- 2.Sc5#
- 1...Sf5
- 2.Sc5#
- 1...Qd5
- 2.Qf4#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sc4
- 2.Sc5#
- 1...Sb7
- 2.Bc6#
- 1...Sf7
- 2.Sc5#
- 1...Sc8
- 2.Sc5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(f);SBLOCK::QAR1(J)
- S(a);N_GUARD,XP(B)::QAB1(J)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(d);XB(G)::QAR1(J)
- S(d);::QAR1(J)
- Tries
- Try
- S(H);
- Threat
- QAR1(J)
- Vars
- S(a);N_GUARD,XS(H)::QAB1(J)
- S(d);XB(G)::S(H)
- Q(f);SBLOCK::QAR1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(d);::S(H)
- Refutation
- S(d);
- Try
- S(H);
- Threat
- QAR1(J)
- Vars
- S(a);OGATE,XS(H)::QAB1(J),XS(a)
- S(d);XB(G)::S(H)
- Q(f);SBLOCK::QAR1(J)
- S(d);OGATE::R1(K)
- S(d);::S(H)
- Refutation
- S(a);
- Try
- S(H);
- Threat
- QAR1(J)
- Vars
- S(d);OGATE,XS(H)::R1(K)
- S(d);XB(G)::S(H)
- Q(f);SBLOCK::QAR1(J)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(d);::S(H)
- Refutation
- S(a);XP(B)
- Try
- S(H);
- Threat
- QAR1(J)
- Vars
- S(d);N_GUARD,XB(G)::QAB(J)
- S(d);N_GUARD,XS(H)::QAB(J)
- Q(f);SBLOCK::QAR1(J)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(d);N_GUARD::QAB(J)
- Refutation
- S(d);
- Try
- B(G);CHECK
- Vars
- S(a);XB(G)::QAB1(J)
- Refutation
- K(c);P_SPINS(d),S_FLIGHT
- Try
- R(K);XS(d)
- Threat
- QAR1(J)
- Refutation
- B(g);XR(K)
- Try
- Actual
- S(H);
- Threat
- QAR1(J)
- Vars
- K(c);S_FLIGHT::QAR1(J)
- S(d);XB(G)::S(H)
- S(d);::S(H)
- Q(f);SBLOCK::QAR1(J)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(d);S_CUTQ(f)::B(G)
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