MESON Chess Problem Database
Problem Display
PID: 86692 (K2b4/Bn1N1nB1/2R1R3/1P1k1P2/8/1P1N1P2/2pq1r2/8 w - - 0 1)
Gross, Erwin
Die Schwalbe 137. TT, 1962
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sb4#
- 1...Qe1
- 2.Sf4#
- 1...Qc3
- 2.Sf4#
- 1...Qe3
- 2.Sb4#
- 1...Qb4
- 2.Sxb4#
- 1...Qf4
- 2.Sxf4#
- 1...Qa5
- 2.Sf4#
- 1...Qg5
- 2.Sb4#
- 1...Qh6
- 2.Sb4#
- 1...Qd1
- 2.Sb4#
- 2.Sf4#
- 1...Qe2
- 2.Sb4#
- 2.Sf4#
- 1...Bh4
- 2.Sb6#
- 1...Ba5
- 2.Sf6#
- 1...Bg5
- 2.Sb6#
- 1...Bb6
- 2.Sxb6#
- 1...Bf6
- 2.Sxf6#
- 1...Bc7
- 2.Sf6#
- 1...Be7
- 2.Sb6#
- 1...Sa5
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Sbd6
- 2.Rc5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sfd6
- 2.Re5#
- 1...Sh6
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Qc1
- Tries
- 1.Bc3?
- threat
- 2.Sb4#
- 1...Qxc3
- 2.Sf4#
- 1...Qf4
- 2.Sxf4#
- 1...Ba5
- 2.Sf6#
- 1...Be7
- 2.Sb6#
- 1...Qxd3!
- threat
- 1.Rc4?
- threat
- 2.Rd4#
- 1...Qc3
- 2.Sf4#
- 1...Qe3
- 2.Sb4#
- 1...Qb4
- 2.Sxb4#
- 2.Sf4#
- 1...Qf4
- 2.Sb4#
- 2.Sxf4#
- 1...Bb6
- 2.Sxb6#
- 2.Sf6#
- 1...Bf6
- 2.Sb6#
- 2.Sxf6#
- 1...Qxd3!
- threat
- 1.Rcd6+?
- 1...Sfxd6
- 2.Re5#
- 1...Sbxd6!
- 1...Sfxd6
- 1.Rc7?
- threat
- 2.Sb6#
- 1...Bxc7
- 2.Sf6#
- 1...Qe3
- 2.Sb4#
- 1...Qa5
- 2.Sf4#
- 1...Bf6
- 2.Sxf6#
- 1...Se5!
- threat
- 1.Re3?
- threat
- 2.Sf4#
- 1...Qxe3
- 2.Sb4#
- 1...Qxd3
- 2.Rxd3#
- 1...Qb4
- 2.Sxb4#
- 1...Bg5
- 2.Sb6#
- 1...Bc7
- 2.Sf6#
- 1...Rxf3!
- threat
- 1.Re4?
- threat
- 2.Rd4#
- 1...Qc3
- 2.Sf4#
- 1...Qe3
- 2.Sb4#
- 1...Qb4
- 2.Sxb4#
- 2.Sf4#
- 1...Qf4
- 2.Sb4#
- 2.Sxf4#
- 1...Bb6
- 2.Sxb6#
- 2.Sf6#
- 1...Bf6
- 2.Sb6#
- 2.Sxf6#
- 1...Qxd3!
- threat
- 1.Red6+?
- 1...Sbxd6
- 2.Rc5#
- 1...Sfxd6!
- 1...Sbxd6
- 1.Re7?
- threat
- 2.Sf6#
- 1...Bxe7
- 2.Sb6#
- 1...Qc3
- 2.Sf4#
- 1...Qg5
- 2.Sb4#
- 1...Qh6
- 2.Sb4#
- 1...Bb6
- 2.Sxb6#
- 1...Sc5!
- threat
- 1.Bc3?
- Keys
- 1.Rc3!
- threat
- 2.Sb4#
- 1...Qxc3
- 2.Sf4#
- 1...Qxd3
- 2.Rxd3#
- 1...Qf4
- 2.Sxf4#
- 1...Ba5
- 2.Sf6#
- 1...Be7
- 2.Sb6#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 20
- Sets
- Q(b);N_GUARD::S(B)
- Q(b);N_GUARD::S(B),XQ(b)
- Q(b);N_GUARD,P_PINB(H)::S(B)
- B(g);N_GUARD::S(I)
- B(g);N_GUARD::S(I),XB(g)
- S(e);N_GUARD::R1(F)
- S(e);N_GUARD::R1(F),XS(e)
- S(f);N_GUARD::R1(G),XS(f)
- S(f);N_GUARD::R1(G)
- Tries
- Try
- B(J);
- Threat
- S(B)
- Vars
- Q(b);N_GUARD,XB(J)::S(B)
- Q(b);N_GUARD::S(B),XQ(b)
- B(g);N_GUARD::S(I)
- Refutation
- Q(b);XS(B)
- Try
- R(F);
- Threat
- R1(F)
- Vars
- Q(b);N_GUARD::S(B)
- Refutation
- Q(b);XS(B)
- Try
- R(F);CHECK
- Vars
- S(f);SBLOCK,XR(F)::R1(G)
- Refutation
- S(e);XR(F)
- Try
- R(F);
- Threat
- S(I)
- Vars
- B(g);N_GUARD,XR(F)::S(I)
- Q(b);N_GUARD::S(B)
- Q(b);N_GUARD,P_PINB(H)::S(B)
- B(g);N_GUARD::S(I),XB(g)
- Refutation
- S(f);
- Try
- R(G);
- Threat
- S(B)
- Vars
- Q(b);N_GUARD,XR(G)::S(B)
- Q(b);OGATE,XS(B)::R(G),XQ(b)
- Q(b);N_GUARD::S(B),XQ(b)
- B(g);N_GUARD::S(I)
- Refutation
- R(c);XP(C)
- Try
- R(G);
- Threat
- R1(G)
- Vars
- Q(b);N_GUARD::S(B)
- Refutation
- Q(b);XS(B)
- Try
- R(G);CHECK
- Vars
- S(e);SBLOCK,XR(G)::R1(F)
- Refutation
- S(f);XR(G)
- Try
- R(G);
- Threat
- S(I)
- Vars
- B(g);N_GUARD,XR(G)::S(I)
- Q(b);N_GUARD::S(B)
- B(g);N_GUARD::S(I),XB(g)
- Refutation
- S(e);
- Try
- Actual
- R(F);
- Threat
- S(B)
- Vars
- Q(b);N_GUARD,XR(F)::S(B)
- Q(b);OGATE,XS(B)::R(F),XQ(b)
- Q(b);N_GUARD::S(B),XQ(b)
- B(g);N_GUARD::S(I)
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