MESON Chess Problem Database
Problem Display
PID: 202270 (4RbB1/1pr5/N7/7n/1p1B1P2/1P1kPR2/rP6/2nK4 w - - 0 1)
Sommer, Bruno Oswald
2nd Prize, Deutsche Schachbund, 1923
#2
10 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Bh7#
- 1...Rc3
- 2.Bh7#
- 1...Rc4
- 2.Bxc4#
- 2.Bh7#
- 1...Rc5
- 2.Sxb4#
- 1...Rd7
- 2.Bc4#
- 1...Re7
- 2.Sc5#
- 1...Rg7
- 2.Bc4#
- 1...Rh7
- 2.Bc4#
- 2.Bxh7#
- 1...Rc8
- 2.Bh7#
- 1...Bc5
- 2.Bc4#
- 1...Bh6
- 2.Sxb4#
- 1...Be7
- 2.Bh7#
- 1...Bg7
- 2.Sxb4#
- 2.Bh7#
- 1...Rc2
- Tries
- 1.Sc5+?
- 1...Bxc5
- 2.Bc4#
- 1...Rxc5!
- 1...Bxc5
- 1.Sxc7?
- threat
- 2.Bc4#
- 2.Bh7#
- 1...Sxf4
- 2.Bc4#
- 1...Be7
- 2.Bh7#
- 1...Ra5
- 2.Bc4#
- 1...Ra6
- 2.Bc4#
- 1...Sg3
- 2.Bc4#
- 1...Sf6
- 2.Bc4#
- 1...Sg7
- 2.Bc4#
- 1...b5
- 2.Bh7#
- 1...Sxb3!
- threat
- 1.Bc3?
- threat
- 2.e4#
- 1...Rxc3
- 2.Bh7#
- 1...Re7
- 2.Sc5#
- 1...Be7
- 2.Bh7#
- 1...Bc5
- 2.Bc4#
- 1...bxc3!
- threat
- 1.Bc5?
- threat
- 2.Sxb4#
- 2.Bc4#
- 2.e4#
- 1...Rxb2
- 2.e4#
- 1...Rxa6
- 2.Bc4#
- 2.e4#
- 1...Rxc5
- 2.Sxb4#
- 1...Bxc5
- 2.Bc4#
- 1...Sxb3
- 2.Sxb4#
- 2.e4#
- 1...bxa6
- 2.Bc4#
- 2.e4#
- 1...Be7
- 2.Bh7#
- 1...Ra4
- 2.Bc4#
- 2.e4#
- 1...Rf7
- 2.Sxb4#
- 2.e4#
- 1...b5
- 2.Sxb4#
- 2.e4#
- 1...Re7!
- threat
- 1.Bf6?
- threat
- 2.e4#
- 1...Re7
- 2.Sc5#
- 1...Be7
- 2.Bh7#
- 1...Bc5
- 2.Bc4#
- 1...Sxf6!
- threat
- 1.Ba7?
- threat
- 2.e4#
- 1...Re7
- 2.Sc5#
- 1...Be7
- 2.Bh7#
- 1...Rc5
- 2.Sxb4#
- 1...Bc5
- 2.Bc4#
- 1...b6!
- threat
- 1.Re7?
- threat
- 2.Sxb4#
- 2.Bh7#
- 1...Rxe7
- 2.Sc5#
- 1...Bxe7
- 2.Bh7#
- 1...Sxb3
- 2.Sxb4#
- 1...Sxf4
- 2.Sxb4#
- 1...bxa6
- 2.Bh7#
- 1...Sf6
- 2.Sxb4#
- 1...Ra4
- 2.Bh7#
- 1...Ra5
- 2.Sxb4#
- 1...Rc4
- 2.Bxc4#
- 2.Bh7#
- 1...Rc5
- 2.Sxb4#
- 2.Sxc5#
- 1...Rc6
- 2.Sxb4#
- 1...Sg3
- 2.Sxb4#
- 1...Sg7
- 2.Sxb4#
- 1...Rxa6!
- threat
- 1.Sc5+?
- Keys
- 1.Bb6!
- threat
- 2.e4#
- 1...Re7
- 2.Sc5#
- 1...Be7
- 2.Bh7#
- 1...Rc5
- 2.Sxb4#
- 1...Bc5
- 2.Bc4#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(g);N_GUARD::B(J)
- R(g);S_CUTB(h)::S(H),XP(d)
- R(g);N_GUARD,S_CUTB(h)::S(H)
- B(h);S_CUTR(g)::B(J)
- B(h);N_GUARD::S(H),XP(d)
- Tries
- Try
- S(H);CHECK
- Vars
- B(h);XS(H)::B(J)
- Refutation
- R(g);XS(H)
- Try
- S(H);XR(g)
- Threat
- DUALS(2)
- Vars
- S(e);XP(G)::B(J)
- B(h);::B(J)
- R(b);::B(J)
- S(e);::B(J)
- P(f);::B(J)
- Refutation
- S(a);XP(C)
- Try
- B(F);
- Threat
- R(E)+P(D)
- Vars
- R(g);N_GUARD,XB(F)::B(J)
- R(g);N_GUARD,S_CUTB(h)::S(H)
- B(h);S_CUTR(g)::B(J)
- Refutation
- P(d);XB(F)
- Try
- B(F);
- Threat
- DUALS(3)
- Vars
- R(b);XP(B)::R(E)+P(D)
- R(g);XB(F)::S(H),XP(d)
- B(h);XB(F)::B(J)
- B(h);S_CUTR(g)::B(J)
- Refutation
- R(g);
- Try
- B(F);
- Threat
- R(E)+P(D)
- Vars
- R(g);N_GUARD,S_CUTB(h)::S(H)
- B(h);S_CUTR(g)::B(J)
- Refutation
- S(e);XB(F)
- Try
- B(F);
- Threat
- R(E)+P(D)
- Vars
- R(g);N_GUARD,S_CUTB(h)::S(H)
- B(h);S_CUTR(g)::B(J)
- R(g);S_CUTB(h)::S(H),XP(d)
- Refutation
- P(f);
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD,XR(I)::S(H)
- B(h);XR(I)::B(J)
- S(a);XP(C)::S(H),XP(d)
- S(e);XP(G)::S(H),XP(d)
- P(f);XS(H)::B(J)
- S(e);::S(H),XP(d)
- R(b);::B(J)
- R(b);::S(H),XP(d)
- R(g);::S(H),XP(d)
- Refutation
- R(b);XS(H)
- Try
- Actual
- B(F);
- Threat
- R(E)+P(D)
- Vars
- R(g);N_GUARD,S_CUTB(h)::S(H)
- B(h);S_CUTR(g)::B(J)
- R(g);S_CUTB(h)::S(H),XP(d)
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