MESON Chess Problem Database
Problem Display
PID: 271180 (4R3/5PKp/3pQ1Pp/3pB3/R2bk1nr/2q4N/4P1r1/4nN1B w - - 0 1)
Lindeberg, FM
Schackvarlden, 1933
#2
11 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Rxd4#
- 1...Qc1
- 2.Rxd4#
- 1...Qc2
- 2.Rxd4#
- 1...Qa3
- 2.Rxd4#
- 1...Qb3
- 2.Rxd4#
- 1...Qf3
- 2.Rxd4#
- 1...Qg3
- 2.Rxd4#
- 1...Qxh3
- 2.Rxd4#
- 1...Qc6
- 2.Rxd4#
- 1...Qc7
- 2.Rxd4#
- 1...Qc8
- 2.Rxd4#
- 1...Rxh3
- 2.Qxg4#
- 1...Rh5
- 2.Qxg4#
- 1...Sd3
- 2.Bxg2#
- 1...Sf2
- 2.Sxf2#
- 2.Bxd4#
- 2.Bf6#
- 1...Sh2
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 1...Se3
- 2.Sg3#
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 1...Sf6
- 2.Sf2#
- 2.Bh2#
- 2.Bg3#
- 2.Bxd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 1...h5
- 2.Sg5#
- 1...hxg6
- 2.Qxg6#
- 1...Qa5
- Tries
- 1.Qxd5+?
- 1...Kf5
- 2.e4#
- 1...Kxd5!
- 1...Kf5
- 1.f8Q?
- threat
- 2.Qef5#
- 2.Qf4#
- 2.Qff5#
- 1...Sxe5
- 2.Sf2#
- 2.Qef5#
- 2.Qff5#
- 1...hxg6
- 2.Qxg6#
- 2.Qf4#
- 1...Qd2
- 2.Qef5#
- 2.Qff5#
- 1...Qc1
- 2.Rxd4#
- 2.Qef5#
- 2.Qff5#
- 1...Qe3
- 2.Qef5#
- 2.Qff5#
- 1...Qf3
- 2.Rxd4#
- 1...Qg3
- 2.Rxd4#
- 2.Qef5#
- 2.Qff5#
- 1...Qc8
- 2.Rxd4#
- 2.Qf4#
- 2.Qff5#
- 1...Rh5
- 2.Qxg4#
- 2.Qf4#
- 1...Sd3
- 2.Bxg2#
- 2.Qef5#
- 2.Qf3#
- 2.Qff5#
- 1...Sf2
- 2.Sxf2#
- 2.Bxd4#
- 2.Bf6#
- 2.Qef5#
- 2.Qff5#
- 1...Sh2
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 2.Qef5#
- 2.Qff5#
- 1...Se3
- 2.Sg3#
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 1...Sf6
- 2.Sf2#
- 2.Bh2#
- 2.Bg3#
- 2.Bxd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 1...Qc7+!
- threat
- 1.f8R?
- threat
- 2.Rf4#
- 2.Qf5#
- 1...Sxe5
- 2.Sf2#
- 2.Qf5#
- 1...hxg6
- 2.Rf4#
- 2.Qxg6#
- 1...Qd2
- 2.Qf5#
- 1...Qc1
- 2.Rxd4#
- 2.Qf5#
- 1...Qe3
- 2.Qf5#
- 1...Qf3
- 2.Rxd4#
- 1...Qg3
- 2.Rxd4#
- 2.Qf5#
- 1...Qc8
- 2.Rxd4#
- 2.Rf4#
- 1...Rh5
- 2.Rf4#
- 2.Qxg4#
- 1...Sd3
- 2.Bxg2#
- 2.Qf5#
- 1...Sf2
- 2.Sxf2#
- 2.Bxd4#
- 2.Bf6#
- 2.Qf5#
- 1...Sh2
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 2.Qf5#
- 1...Se3
- 2.Sg3#
- 2.Sf2#
- 2.Bxd4#
- 2.Bf6#
- 1...Sf6
- 2.Sf2#
- 2.Bh2#
- 2.Bg3#
- 2.Bxd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 1...Qc7+!
- threat
- 1.Qxd5+?
- Keys
- 1.gxh7!
- threat
- 2.Qg6#
- 1...Se3+
- 2.Sg3#
- 1...Sf6+
- 2.Bg3#
- 1...Qf3
- 2.Rxd4#
- 1...Qc8
- 2.Rxd4#
- 1...Rh5
- 2.Qxg4#
- threat
- 1.gxh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 13
- Sets
- Q(c);N_GUARD::R1(E),XB(d)
- Q(c);N_GUARD,N_SPINR(b)::R1(E),XB(d)
- Q(c);N_GUARD,XS(D)::R1(E),XB(d)
- Q(c);N_GUARD,P_PINP(I)::R1(E),XB(d)
- R(g);N_GUARD,XS(D)::QAR2(G),XS(f)
- R(g);N_GUARD::QAR2(G),XS(f)
- S(a);N_GUARD,S_CUTQ(c)::B(B),XR(b)
- P(j);N_GUARD::S(D)
- P(k);OGATE,XP(H)::QAB(G),XP(k)
- Tries
- Try
- Q(G);CHECK,XP(h)
- Vars
- K(e);N_SPINB(d),N_SPINR(b),OGATE,S_FLIGHT::P(C)
- Refutation
- K(e);N_SPINB(d),S_FLIGHT,XQ(G)
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD,N_SPINR(b)::R1(E),XB(d)
- Refutation
- Q(c);CHECK
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(c);::QAB1(G)
- Q(c);N_GUARD,N_SPINR(b)::R1(E),XB(d)
- Refutation
- Q(c);CHECK
- Try
- Actual
- P(H);XP(k)
- Threat
- QAB(G)
- Vars
- S(f);CHECK,SBLOCK,S_CUTQ(c)::S(A)
- S(f);CHECK,N_PINB(F)::QAR(G)+B(F)
- Q(c);N_GUARD,N_SPINR(b)::R1(E),XB(d)
- Q(c);N_GUARD::R1(E),XB(d)
- R(g);N_GUARD::QAR2(G),XS(f)
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