MESON Chess Problem Database
Problem Display
PID: 49199 (4r3/P1B2Qpp/4p3/5N2/4k2r/1R6/K5bp/1N1R2bn w - - 0 1)
Sommer, Bruno Oswald
1st Prize, Deutsche Schachbund, 1929
#2
8 + 10
| 461 | Schach-Express | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.a8Q#
- 2.a8B#
- 1...Ra8
- 2.Qxe6#
- 1...Rb8
- 2.Qxe6#
- 1...Rc8
- 2.Qxe6#
- 1...Rd8
- 2.Qxe6#
- 1...Rf8
- 2.Qxe6#
- 1...Rg8
- 2.Qxe6#
- 1...Rh8
- 2.Qxe6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 1...Bf3
- 2.Sc3#
- 1...Sf2
- 2.Sg3#
- 2.Rd4#
- 2.Re3#
- 1...Sg3
- 2.Sxg3#
- 1...exf5
- 2.Qd5#
- 2.Qxe8#
- 1...e5
- 2.Sd6#
- 1...Re7
- Tries
- 1.Sxh4?
- threat
- 2.Qf4#
- 1...Rf8
- 2.Qxe6#
- 1...Be3
- 2.Sc3#
- 1...e5
- 2.Qf5#
- 1...g5
- 2.Qxh7#
- 1...Bd4!
- threat
- 1.Rdd3?
- threat
- 2.Sd2#
- 1...Bd4
- 2.Rxd4#
- 1...e5
- 2.Sd6#
- 1...Be3!
- threat
- 1.Rd7?
- threat
- 2.Sd2#
- 1...Be3
- 2.Rxe3#
- 1...e5!
- threat
- 1.Rd8?
- threat
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rxd8
- 2.Qxe6#
- 1...Bxa7
- 2.Sd2#
- 1...exf5
- 2.Sd2#
- 2.Qd5#
- 2.Qxe8#
- 2.a8Q#
- 2.a8B#
- 1...Be3
- 2.Rxe3#
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rf4
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rg4
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Re7
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Rf8
- 2.Sd2#
- 2.Qxe6#
- 2.a8Q#
- 2.a8B#
- 1...Rg8
- 2.Sd2#
- 2.Qxe6#
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.Sd2#
- 2.Qxe6#
- 2.a8Q#
- 2.a8B#
- 1...Bf2
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Bd4
- 2.Sd2#
- 2.Rxd4#
- 2.a8Q#
- 2.a8B#
- 1...Bc5
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Bb6
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Bf1
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Bf3
- 2.Sd2#
- 2.Sc3#
- 2.a8Q#
- 2.a8B#
- 1...Bh3
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sd2#
- 2.Sg3#
- 2.Re3#
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Sg3
- 2.Sd2#
- 2.Sxg3#
- 2.a8Q#
- 2.a8B#
- 1...g5
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...g6
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...h5
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...h6
- 2.Sd2#
- 2.a8Q#
- 2.a8B#
- 1...e5!
- threat
- 1.Rbd3?
- threat
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 1...e5
- 2.Sd6#
- 1...Bd4!
- threat
- 1.Rg3?
- threat
- 2.Sc3#
- 1...Bd4
- 2.Rxd4#
- 1...e5
- 2.Sd6#
- 1...Sxg3!
- threat
- 1.Qf6?
- threat
- 2.Sd6#
- 2.Qe5#
- 1...exf5
- 2.Qc6#
- 1...Be3
- 2.Sd6#
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 1...e5
- 2.Sd6#
- 1...Rd8
- 2.Qe5#
- 2.Qxe6#
- 1...Bc5
- 2.Qe5#
- 1...gxf6!
- threat
- 1.Sxh4?
- Keys
- 1.Se7!
- threat
- 2.Qxe6#
- 1...Rxe7
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.Qf4#
- 1...Rh6
- 2.Qf4#
- 1...Be3
- 2.Sc3#
- 1...Bd4
- 2.Sd2#
- 1...Bh3
- 2.Qf3#
- 1...e5
- 2.Qf5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(j);N_GUARD::P=Q
- R(j);N_GUARD,P_PINP(F)::QAR2(H),XP(g)
- R(j);N_GUARD::QAR2(H),XP(g)
- B(a);N_GUARD::R1(D),XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- B(c);SBLOCK::S(A)
- S(b);N_GUARD::S(E),XS(b)
- P(g);SBLOCK::S(E)
- Tries
- Try
- S(E);XR(f)
- Threat
- QAR1(H)
- Vars
- R(j);N_GUARD::QAR2(H),XP(g)
- B(a);SBLOCK::S(A)
- P(g);N_GUARD::QAB1(H)
- P(h);OGATE::QAB(H),XP(i)
- Refutation
- B(a);
- Try
- R(B);
- Threat
- S(A)
- Vars
- B(a);N_GUARD::R1(B),XB(a)
- P(g);SBLOCK::S(E)
- Refutation
- B(a);
- Try
- R(B);
- Threat
- S(A)
- Vars
- B(a);N_GUARD::R1(D),XB(a)
- Refutation
- P(g);
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- R(j);N_GUARD,XR(B)::QAR2(H),XP(g)
- B(a);XP(F)::S(A)
- Refutation
- P(g);
- Try
- R(D);
- Threat
- S(A)
- Vars
- B(a);N_GUARD::R1(D),XB(a)
- P(g);SBLOCK::S(E)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- S(A)
- Vars
- B(a);N_GUARD::R1(B),XB(a)
- P(g);SBLOCK::S(E)
- Refutation
- S(b);XR(D)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(g);OGATE,SBLOCK,XS(E)::QAB(H)
- B(a);N_GUARD::R1(B),XB(a)
- P(g);::S(E)
- B(a);::QAR1(H)
- Refutation
- P(h);XQ(H)
- Try
- Actual
- S(E);
- Threat
- QAR2(H),XP(g)
- Vars
- R(j);N_GUARD,XS(E)::P=Q
- R(f);N_GUARD::QAR1(H)
- B(a);SBLOCK::S(A)
- B(c);N_GUARD::QAB1(H)
- P(g);N_GUARD::QAB1(H)
Developed and maintained by Brian Stephenson.
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