MESON Chess Problem Database
Problem Display
PID: 49372 (6bq/1Q5p/4k3/2b1P2N/3n2K1/4N1B1/4RR2/1Br5 w - - 0 1)
Grasemann, Herbert
Revista Romana de Sah, 1949
#2
9 + 7
| 461 | Schach-Express | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Rxf6#
- 1...Qg7+
- 2.Sxg7#
- 1...Be7
- 2.Qd5#
- 1...Bf7
- 2.Qxf7#
- 1...Sc2
- 2.Ba2#
- 1...Sxe2
- 2.Bf5#
- 1...Sb3
- 2.Bf5#
- 1...Sf3
- 2.Bf5#
- 1...Sb5
- 2.Bf5#
- 1...Sf5
- 2.Bxf5#
- 1...Sc6
- 2.Bf5#
- 1...Qf6
- Tries
- 1.Sd1?
- threat
- 2.Sf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Rf6#
- 1...Sxe2
- 2.Bf5#
- 1...Qf6
- 2.Rxf6#
- 1...Be7!
- threat
- 1.Sf1?
- threat
- 2.Sf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Rf6#
- 1...Sxe2
- 2.Bf5#
- 1...Qf6
- 2.Rxf6#
- 1...Be7!
- threat
- 1.Sg2?
- threat
- 2.Sgf4#
- 2.Shf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Rf6#
- 1...Sxe2
- 2.Bf5#
- 1...Qf6
- 2.Rxf6#
- 1...Be7!
- threat
- 1.Sc4?
- threat
- 2.Sf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Sg7#
- 2.Rxe5#
- 2.Rf6#
- 1...Sxe2
- 2.Bf5#
- 1...Qf6
- 2.Rxf6#
- 1...Be7!
- threat
- 1.Sd5?
- threat
- 2.Sdf4#
- 2.Shf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Rf6#
- 1...Sxe2
- 2.Bf5#
- 1...Qf6
- 2.Rxf6#
- 1...Be7!
- threat
- 1.Sf5?
- threat
- 2.Sf4#
- 1...Qg7+
- 2.Sfxg7#
- 2.Shxg7#
- 1...Qxe5
- 2.Rxe5#
- 1...Be7
- 2.Sxd4#
- 1...Sxe2!
- threat
- 1.Ba2+?
- 1...Rc4
- 2.Bxc4#
- 1...Sb3!
- 1...Rc4
- 1.Be4?
- threat
- 2.Bd5#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5!
- threat
- 1.Rf7?
- threat
- 2.Qd5#
- 2.Qd7#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Qd7#
- 1...Be7
- 2.Rxe7#
- 2.Qd5#
- 2.Qxe7#
- 1...Sc6
- 2.Bf5#
- 2.Qd7#
- 1...Bxf7!
- threat
- 1.Sd1?
- Keys
- 1.Sc2!
- threat
- 2.Sf4#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxe5
- 2.Rf6#
- 1...Sxe2
- 2.Ba2#
- 1...Be7
- 2.Sxd4#
- 1...Qf6
- 2.Rxf6#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(g);N_GUARD::R1(C),XQ(g)
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- B(c);SBLOCK::QAB1(I)
- B(f);N_GUARD::QAB1(I),XB(f)
- S(b);N_GUARD,S_CUTR(a)::B(A)
- S(b);N_GUARD,XR(B)::B(A)
- S(b);N_GUARD::B(A)
- S(b);N_GUARD::B(A),XS(b)
- Tries
- Try
- S(D);
- Threat
- S(H)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,P_SPINQ(g),XP(G)::R1(C)
- S(b);N_GUARD,XR(B)::B(A)
- Q(g);N_GUARD::R1(C),XQ(g)
- Refutation
- B(c);
- Try
- S(D);
- Threat
- S(H)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,P_SPINQ(g),XP(G)::R1(C)
- S(b);N_GUARD,XR(B)::B(A)
- Q(g);N_GUARD::R1(C),XQ(g)
- Refutation
- B(c);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,P_SPINQ(g),XP(G)::R1(C)
- S(b);N_GUARD,XR(B)::B(A)
- Q(g);N_GUARD::R1(C),XQ(g)
- Refutation
- B(c);
- Try
- S(D);
- Threat
- S(H)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- S(b);N_GUARD,XR(B)::B(A)
- Q(g);N_GUARD::R1(C),XQ(g)
- Refutation
- B(c);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,P_SPINQ(g),XP(G)::R1(C)
- S(b);N_GUARD,XR(B)::B(A)
- Q(g);N_GUARD::R1(C),XQ(g)
- Refutation
- B(c);
- Try
- S(D);
- Threat
- S(H)
- Vars
- Q(g);OGATE,P_SPINQ(g),XP(G)::R1(B),XQ(g)
- B(c);N_GUARD::S(D),XS(b)
- Refutation
- S(b);XR(B)
- Try
- B(A);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
- Refutation
- S(b);P_SPINS(b)
- Try
- B(A);
- Threat
- B(A)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Refutation
- Q(g);XP(G)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);XP(G)::QAB1(I)
- Refutation
- B(f);XR(C)
- Try
- Actual
- S(D);
- Threat
- S(H)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,P_SPINQ(g),XP(G)::R1(C)
- S(b);N_GUARD,XR(B)::B(A)
- B(c);N_GUARD::S(D),XS(b)
- Q(g);N_GUARD::R1(C),XQ(g)
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