MESON Chess Problem Database
Problem Display
PID: 60746 (6K1/R4P2/8/rp4Q1/pkBN1N1R/bq2p2p/PP1PP2r/7b w - - 0 1)
Lipton, Michael
4th HM., British Chess Magazine, 1969
#2
12 + 10
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...Ra6
- 2.Qxb5#
- 1...Rxa7
- 2.Qxb5#
- 1...bxc4
- 2.Qxa5#
- 1...Ra6
- Tries
- 1.Sc2+?
- 1...Kxc4
- 2.Sg2#
- 1...Qxc2!
- 1...Kxc4
- 1.Sxb3?
- threat
- 2.Sd3#
- 2.Qc5#
- 1...Kxc4
- 2.Sg2#
- 1...Bxb2
- 2.Qc5#
- 1...bxc4
- 2.Sd3#
- 2.Qxa5#
- 1...Rg2
- 2.Sd3#
- 2.Sd5#
- 1...Be4
- 2.Qc5#
- 1...Bd5
- 2.Sd3#
- 2.Sxd5#
- 1...axb3!
- threat
- 1.Sc6+?
- 1...Kxc4
- 2.Sg2#
- 1...Bxc6!
- 1...Kxc4
- 1.Sd3+?
- 1...Kxc4
- 2.Sf3#
- 1...Qxd3!
- 1...Kxc4
- 1.Sfe6?
- threat
- 2.Qc5#
- 1...Kxc4
- 2.Sf3#
- 1...Qxc4
- 2.Sc2#
- 1...Rxa7
- 2.Qxb5#
- 1...bxc4
- 2.Qxa5#
- 1...Ra6
- 2.Qxb5#
- 1...Rg2
- 2.Sc6#
- 1...Bd5!
- threat
- 1.Bxb3?
- threat
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rxe2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rxa7
- 2.Qxb5#
- 1...Bxb2
- 2.Sc2#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...exd2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Ra6
- 2.Qxb5#
- 1...Bd5
- 2.Sd3#
- 2.Qe7#
- 1...Rf2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rg2
- 2.Sc2#
- 2.Sc6#
- 2.Sd3#
- 2.f8Q#
- 2.f8B#
- 1...Bg2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bf3
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bc6
- 2.Sc2#
- 2.Sxc6#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bb7
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Ba8
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...axb3!
- threat
- 1.axb3?
- threat
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rxe2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rxa7
- 2.Qxb5#
- 1...Bxb2
- 2.Sc2#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...exd2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...bxc4
- 2.Qxa5#
- 1...Ra6
- 2.Qxb5#
- 1...Bd5
- 2.Sd3#
- 2.Qe7#
- 1...Rf2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Rg2
- 2.Sc2#
- 2.Sc6#
- 2.Sd3#
- 2.f8Q#
- 2.f8B#
- 1...Bg2
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bf3
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bc6
- 2.Sc2#
- 2.Sxc6#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Bb7
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...Ba8
- 2.Sc2#
- 2.Sd3#
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...axb3!
- threat
- 1.Sc2+?
- Keys
- 1.Sde6!
- threat
- 2.Qc5#
- 1...Kxc4
- 2.Sg2#
- 1...Qxc4
- 2.Sd3#
- 1...Rxa7
- 2.Qxb5#
- 1...bxc4
- 2.Qxa5#
- 1...Ra6
- 2.Qxb5#
- 1...Rg2
- 2.Sd5#
- 1...Bd5
- 2.Sxd5#
- threat
- 1.Sde6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(i);N_GUARD::QAR1(I),XP(j)
- R(i);N_GUARD,XR(J)::QAR1(I),XP(j)
- P(j);OGATE,SBLOCK,XB(E)::QAB1(I),XR(i)
- Tries
- Try
- S(F);CHECK
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(G)
- Refutation
- Q(d);XS(F)
- Try
- S(F);XQ(d)
- Threat
- DUALS(2)
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(G)
- B(c);XP(B)::QAB1(I)
- B(a);::QAB1(I)
- Refutation
- P(g);XS(F)
- Try
- S(F);CHECK
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(G)
- Refutation
- B(a);XS(F)
- Try
- S(G);CHECK
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(F)
- Refutation
- Q(d);XS(G)
- Try
- S(G);
- Threat
- QAB1(I)
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(F)
- Q(d);N_GUARD,XB(E)::S(F)
- R(i);N_GUARD,XR(J)::QAR1(I),XP(j)
- P(j);OGATE,SBLOCK,XB(E)::QAB1(I),XR(i)
- R(i);N_GUARD::QAR1(I),XP(j)
- R(b);P_PINQ(I),S_CUTB(a)::S(F)
- Refutation
- B(a);
- Try
- B(E);XQ(d)
- Threat
- DUALS(5)
- Vars
- R(i);N_GUARD,XR(J)::QAR1(I),XP(j)
- R(i);N_GUARD::QAR1(I),XP(j)
- Refutation
- P(g);XB(E)
- Try
- P(A);XQ(d)
- Threat
- DUALS(5)
- Vars
- R(i);N_GUARD,XR(J)::QAR1(I),XP(j)
- P(j);OGATE,XB(E)::QAB1(I),XR(i)
- R(i);N_GUARD::QAR1(I),XP(j)
- Refutation
- P(g);XP(A)
- Try
- Actual
- S(F);
- Threat
- QAB1(I)
- Vars
- K(h);P-FLIGHT,XB(E)::R(H)+S(G)
- Q(d);N_GUARD,XB(E)::S(G)
- R(i);N_GUARD,XR(J)::QAR1(I),XP(j)
- P(j);OGATE,SBLOCK,XB(E)::QAB1(I),XR(i)
- R(i);N_GUARD::QAR1(I),XP(j)
- R(b);P_PINQ(I),S_CUTB(a)::S(G)
- B(a);N_GUARD::S(G),XB(a)
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