MESON Chess Problem Database
Problem Display
PID: 105427 (8/1Kp3br/1nN5/Q1Pk1P1N/3P2q1/1P6/2B1R3/2Rn3r w - - 0 1)
Erokhin, Vladimir Alekseevich
Sachove umeni (Ceskoslovensky sach), 1980
#2
11 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Sf4#
- 1...Qh3
- 2.Sf4#
- 2.Be4#
- 1...Qxh5
- 2.Be4#
- 1...Qg1
- 2.Sf4#
- 2.Be4#
- 1...Qg2
- 2.Sf4#
- 1...Qg3
- 2.Be4#
- 1...Qxd4
- 2.Se7#
- 1...Qe4
- 2.Bxe4#
- 1...Qf4
- 2.Sxf4#
- 1...Qg5
- 2.Be4#
- 1...Qg6
- 2.Sf4#
- 2.Be4#
- 1...Bxd4
- 2.Sb4#
- 1...Be5
- 2.Rxe5#
- 1...Bf6
- 2.Sxf6#
- 1...Bh6
- 2.Sf6#
- 2.Re5#
- 1...Bf8
- 2.Sf6#
- 2.Re5#
- 1...Qxe2
- Tries
- 1.Rxd1?
- threat
- 2.Sb4#
- 2.Se7#
- 1...Qxe2
- 2.Sf4#
- 2.Sb4#
- 1...Bxd4
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Qe4
- 2.Sb4#
- 2.Bxe4#
- 1...Qh4
- 2.Sb4#
- 1...Qg5
- 2.Sb4#
- 2.Be4#
- 1...Be5
- 2.Sb4#
- 2.Rxe5#
- 1...Bf6
- 2.Sxf6#
- 2.Sb4#
- 1...Bh6
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bh8
- 2.Sb4#
- 1...Sc8
- 2.Sb4#
- 1...Rxd1!
- threat
- 1.Rd2?
- threat
- 2.Sb4#
- 2.Se7#
- 1...Qxd4
- 2.Sf4#
- 1...Bxd4
- 2.Sf6#
- 1...Qe2
- 2.Sf4#
- 2.Sb4#
- 1...Qe4
- 2.Sb4#
- 1...Qh4
- 2.Sb4#
- 1...Qg5
- 2.Sb4#
- 1...Re1
- 2.Sb4#
- 1...Be5
- 2.Sb4#
- 1...Bf6
- 2.Sxf6#
- 2.Sb4#
- 1...Bh6
- 2.Sf6#
- 2.Sb4#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 1...Bh8
- 2.Sb4#
- 1...Sc8
- 2.Sb4#
- 1...Qxf5!
- threat
- 1.Re4?
- threat
- 2.Sb4#
- 2.Se7#
- 1...Bxd4
- 2.Sb4#
- 1...Qh4
- 2.Sb4#
- 1...Qg5
- 2.Sb4#
- 1...Be5
- 2.Sb4#
- 2.Rxe5#
- 1...Bf6
- 2.Sxf6#
- 2.Sb4#
- 1...Bh6
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bh8
- 2.Sb4#
- 1...Sc8
- 2.Sb4#
- 1...Qxe4!
- threat
- 1.Qc3?
- threat
- 2.Sb4#
- 2.Se7#
- 1...Qxe2
- 2.Sf4#
- 2.Sb4#
- 1...Qxd4
- 2.Se7#
- 1...Bxd4
- 2.Sb4#
- 1...Qe4
- 2.Sb4#
- 2.Bxe4#
- 1...Qh4
- 2.Sb4#
- 1...Qg5
- 2.Sb4#
- 2.Be4#
- 2.Qf3#
- 1...Be5
- 2.Sb4#
- 2.Rxe5#
- 1...Bf6
- 2.Sxf6#
- 2.Sb4#
- 1...Bh6
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bh8
- 2.Sb4#
- 1...Sc8
- 2.Sb4#
- 2.Qc4#
- 1...Sxc3!
- threat
- 1.Rxd1?
- Keys
- 1.Qd2!
- threat
- 2.Sb4#
- 2.Se7#
- 1...Qxe2
- 2.Sf4#
- 2.Sb4#
- 1...Qxd4
- 2.Be4#
- 1...Bxd4
- 2.Re5#
- 1...Qe4
- 2.Sb4#
- 2.Bxe4#
- 1...Qh4
- 2.Sb4#
- 1...Qg5
- 2.Sb4#
- 2.Be4#
- 1...Be5
- 2.Sb4#
- 2.Rxe5#
- 1...Bf6
- 2.Sxf6#
- 2.Sb4#
- 1...Bh6
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 2.Re5#
- 1...Bh8
- 2.Sb4#
- 1...Sc8
- 2.Sb4#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(c);N_GUARD,XR(C)::S(I)
- Q(c);N_GUARD,XS(I)::B(B)
- Q(c);N_GUARD::S(I)
- Q(c);N_GUARD::B(B)
- Q(c);SBLOCK,XP(E)::S(J)
- Q(c);N_GUARD::B(B),XQ(c)
- Q(c);N_GUARD::S(I),XQ(c)
- B(g);SBLOCK,XP(E)::S(J)
- B(g);N_GUARD::R1(C),XB(g)
- B(g);N_GUARD::S(I),XB(g)
- Tries
- Try
- R(A);XS(a)
- Threat
- DUALS(2)
- Vars
- Q(c);::S(J)
- B(g);::S(J)
- S(e);::S(J)
- Refutation
- R(b);XR(A)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(E)::S(I)
- B(g);N_GUARD,P_SPINB(g),XP(E)::S(I)
- Q(c);::S(J)
- R(b);::S(J)
- B(g);::S(J)
- S(e);::S(J)
- Refutation
- Q(c);XP(H)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(g);XP(E)::S(J)
- Q(c);::S(J)
- B(g);::S(J)
- S(e);::S(J)
- Refutation
- Q(c);XR(C)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(c);XP(E)::S(J)
- B(g);XP(E)::S(J)
- Q(c);::S(J)
- B(g);::S(J)
- Refutation
- S(a);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(E)::B(B)
- B(g);N_GUARD,P_SPINB(g),XP(E)::R1(C)
- Q(c);::S(J)
- B(g);::S(J)
- S(e);::S(J)
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