MESON Chess Problem Database
Problem Display
PID: 150971 (4N3/4p3/1K1N4/3k1n2/3BR3/1bp3P1/7Q/5B2 w - - 0 1)
Akobiya, Yuri
Sachove umeni (Ceskoslovensky sach), 1979
#2
8 + 5
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Bc4#
- 1...Ba2
- 2.Qxa2#
- 1...Bc2
- 2.Bc4#
- 1...Ba4
- 2.Bc4#
- 1...Bc4
- 2.Bxc4#
- 1...exd6
- 2.Sf6#
- 1...Bd1
- Tries
- 1.Sxf5?
- threat
- 2.Re5#
- 1...e5
- 2.Rxe5#
- 1...Kxe4!
- threat
- 1.Sf6+?
- 1...Kxd6
- 2.Bc5#
- 1...exf6!
- 1...Kxd6
- 1.Bxc3?
- threat
- 2.Re5#
- 1...exd6
- 2.Sf6#
- 1...e5
- 2.Rxe5#
- 1...Sd4!
- threat
- 1.Bc5?
- threat
- 2.Sc7#
- 1...exd6
- 2.Sf6#
- 1...Sxd6!
- threat
- 1.Qg1?
- threat
- 2.Re5#
- 1...Sxd4
- 2.Qxd4#
- 1...exd6
- 2.Sf6#
- 1...e5
- 2.Rxe5#
- 1...Se3!
- threat
- 1.Qd2?
- threat
- 2.Re5#
- 1...Sxd4
- 2.Qxd4#
- 1...exd6
- 2.Sf6#
- 1...e5
- 2.Rxe5#
- 1...cxd2!
- threat
- 1.Qe2?
- threat
- 2.Qb5#
- 1...Sxd4
- 2.Re5#
- 1...Sxd6
- 2.Sc7#
- 1...exd6
- 2.Sf6#
- 2.Sc7#
- 1...Ba4
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 1...e5!
- threat
- 1.Qf2?
- threat
- 2.Re5#
- 1...Sxd4
- 2.Qxd4#
- 1...exd6
- 2.Sf6#
- 2.Qxf5#
- 1...e5
- 2.Rxe5#
- 1...Se3!
- threat
- 1.Qh6?
- threat
- 2.Sc7#
- 2.Qe6#
- 1...Sxd4
- 2.Sc7#
- 1...Sxd6
- 2.Qe6#
- 1...exd6
- 2.Sf6#
- 2.Qe6#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Sc7#
- 1...e6
- 2.Qxe6#
- 1...Sxh6!
- threat
- 1.Qh8?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sf6#
- 1...e5
- 2.Qxe5#
- 2.Qg8#
- 1...Sg7!
- threat
- 1.g4?
- threat
- 2.Sc7#
- 2.Qe5#
- 1...Sxd6
- 2.Qe5#
- 1...exd6
- 2.Sf6#
- 1...e5
- 2.Qxe5#
- 1...Sg3!
- threat
- 1.Sxf5?
- Keys
- 1.Sb5!
- threat
- 2.Sxc3#
- 2.Re5#
- 1...Kxe4
- 2.Qh1#
- 2.Qg2#
- 1...Sxd4
- 2.Sxc3#
- 1...e5
- 2.Rxe5#
- 1...c2
- 2.Sc3#
- 2.Re5#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(a);N_GUARD::B(A)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- P(e);N_GUARD,SBLOCK,XS(G)::S(H)
- Tries
- Try
- S(G);XS(d)
- Threat
- R1(E)
- Vars
- P(e);::R1(E),XP(e)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- S(H);CHECK
- Vars
- K(c);P-FLIGHT,XS(G)::B(D)
- Refutation
- P(e);XS(H)
- Try
- B(D);XP(b)
- Threat
- R1(E)
- Vars
- P(e);N_GUARD,SBLOCK,XS(G)::S(H)
- P(e);::R1(E),XP(e)
- Refutation
- S(d);
- Try
- B(D);
- Threat
- S(H)
- Vars
- P(e);N_GUARD,XS(G)::S(H)
- Refutation
- S(d);XS(G)
- Try
- Q(B);
- Threat
- R1(E)
- Vars
- S(d);OGATE,XB(D)::QAR1(B),XS(d)
- P(e);N_GUARD,SBLOCK,XS(G)::S(H)
- P(e);::R1(E),XP(e)
- Refutation
- S(d);
- Try
- Q(B);
- Threat
- R1(E)
- Vars
- S(d);OGATE,P_SPINS(d),XB(D)::QAR1(B),XS(d)
- P(e);N_GUARD,SBLOCK,XS(G)::S(H)
- P(e);::R1(E),XP(e)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- S(d);SBLOCK,XB(D)::R1(E)
- S(d);SBLOCK,XS(G)::S(H)
- B(a);N_GUARD::QAB1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- Refutation
- P(e);
- Try
- Q(B);
- Threat
- R1(E)
- Vars
- S(d);OGATE,XB(D)::QAR1(B),XS(d)
- P(e);::R1(E),XP(e)
- Refutation
- S(d);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(d);XB(D)::S(H)
- S(d);XS(G)::QAB1(B)
- S(d);::S(H)
- P(e);::S(H)
- P(e);::QAB1(B),XP(e)
- Refutation
- S(d);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- P(e);N_GUARD,SBLOCK,XS(G)::S(H)
- Refutation
- S(d);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- S(d);XS(G)::QAR1(B)
- P(e);N_GUARD,XS(G)::S(H)
- P(e);::QAR1(B),XP(e)
- Refutation
- S(d);
- Try
- Actual
- S(G);
- Threat
- DUALS(2)
- Vars
- S(d);XB(D)::S(G),XP(b)
- P(e);::R1(E),XP(e)
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