MESON Chess Problem Database
Problem Display
PID: 45250 (B4Q2/3b2pN/1rn2n2/3P3R/4k2p/4p1b1/1BP1N3/3K1R2 w - - 0 1)
Grasemann, Herbert
1st Prize, Schach TT, 1957
#2
10 + 9
| 3976 | FIDE Album (1956-1958) | 1961 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Sb4
- 2.Sg5#
- 1...Sd4
- 2.Sc3#
- 1...Sa5
- 2.Sg5#
- 1...Se5
- 2.Sg5#
- 1...Sa7
- 2.Sg5#
- 1...Se7
- 2.Sg5#
- 1...Sb8
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sg4
- 2.Qf3#
- 1...Sxd5
- 2.Sg5#
- 2.Qf3#
- 1...Sxh5
- 2.Qf3#
- 1...Sxh7
- 2.Qf3#
- 1...Se8
- 2.Qf3#
- 1...Sg8
- 2.Qf3#
- 1...h3
- 2.Sxg3#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Be1
- Tries
- 1.Re5+?
- 1...Sxe5
- 2.Sg5#
- 1...Bxe5!
- 1...Sxe5
- 1.Qb4+?
- 1...Sxb4
- 2.Sg5#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Rxb4!
- 1...Sxb4
- 1.Qc5?
- threat
- 2.Sc3#
- 2.Sg5#
- 1...Rxb2
- 2.Sc3#
- 1...Sxd5
- 2.Sg5#
- 2.Qxd5#
- 1...Sxh5
- 2.Sg5#
- 1...Sxh7
- 2.Sc3#
- 1...Rb3
- 2.Sg5#
- 1...Be1
- 2.Sg5#
- 2.Rf4#
- 1...Bf4
- 2.Sc3#
- 2.Rxf4#
- 1...Be5
- 2.Sg5#
- 1...Bg4
- 2.Sg5#
- 1...Bf5
- 2.Sg5#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...g5
- 2.Sxg5#
- 2.Sxf6#
- 1...Bf2!
- threat
- 1.Qxf6?
- threat
- 2.Sc3#
- 2.Qf3#
- 1...gxf6
- 2.Sxf6#
- 1...Be5
- 2.Qf3#
- 1...Bf5
- 2.Sc3#
- 2.Qxf5#
- 1...Rb3
- 2.Qf3#
- 1...Be1
- 2.Rf4#
- 2.Qf3#
- 2.Qf4#
- 1...Bf2
- 2.Sc3#
- 2.Qf4#
- 1...Bf4
- 2.Sc3#
- 2.Rxf4#
- 2.Qxf4#
- 1...Sd4
- 2.Sc3#
- 2.Sg5#
- 2.Qxd4#
- 1...Se5
- 2.Sg5#
- 1...Bg4!
- threat
- 1.Re5+?
- Keys
- 1.Qxg7!
- threat
- 2.Sxf6#
- 1...Sxd5
- 2.Sg5#
- 1...Sxh5
- 2.Sc3#
- 1...Sxh7
- 2.Sc3#
- 1...Bf2
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Sb4
- 2.Sg5#
- 1...Sd4
- 2.Sc3#
- 1...Sa5
- 2.Sg5#
- 1...Se5
- 2.Sg5#
- 1...Sa7
- 2.Sg5#
- 1...Se7
- 2.Sg5#
- 1...Sb8
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sg4
- 2.Sc3#
- 1...Se8
- 2.Sc3#
- 1...Sg8
- 2.Sc3#
- threat
- 1.Qxg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(b);N_GUARD::R1(B)
- B(b);N_GUARD::R1(B),XB(b)
- S(f);::S(H)
- S(f);SBLOCK::S(E)
- S(g);OGATE::QAB1(J)
- S(g);OGATE,XR(G)::QAB1(J)
- S(g);OGATE,XS(H)::QAB1(J)
- P(d);N_GUARD::S(E),XB(b)
- P(i);N_GUARD::S(H),XS(g)
- Tries
- Try
- R(G);CHECK
- Vars
- S(f);XR(G)::S(H)
- Refutation
- B(b);XR(G)
- Try
- Q(J);CHECK
- Vars
- S(f);XQ(J)::S(H)
- Refutation
- R(e);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(e);XB(C)::S(E)
- S(g);XR(G)::S(H)
- S(g);XS(H)::S(E)
- R(e);::S(H)
- B(b);::S(H)
- B(h);P_PINS(E)::S(H)
- B(h);::S(H)
- Refutation
- B(b);
- Try
- Q(J);XS(g)
- Threat
- DUALS(2)
- Vars
- P(i);XQ(J)::S(H),XP(i)
- B(b);::QAB1(J)
- R(e);::QAB1(J)
- S(f);::S(H)
- Refutation
- B(h);P_PINS(E)
- Try
- Actual
- Q(J);XP(i)
- Threat
- S(H),XS(g)
- Vars
- S(g);SBLOCK,XP(F)::S(H)
- S(g);XR(G)::S(E)
- S(g);XS(H)::S(E)
- B(b);OGATE::QAB(J)
- S(f);::S(H)
- S(f);SBLOCK::S(E)
- S(g);::S(E)
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