MESON Chess Problem Database
Problem Display
PID: 255833 (1bR4K/r4pB1/2R3Np/1Npk4/1Pp3n1/1P3r1q/2QP4/5b2 w - - 0 1)
Syzonenko, Viktor N
Probleemblad, 1984
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Qxc4#
- 1...Ra1
- 2.Se7#
- 1...Ra2
- 2.Se7#
- 1...Ra3
- 2.Se7#
- 1...Ra4
- 2.Se7#
- 1...Ra5
- 2.Se7#
- 1...Ra6
- 2.Se7#
- 1...Rc7
- 2.Rd6#
- 1...Re7
- 2.Sxe7#
- 1...Ra8
- 2.Se7#
- 1...Bg2
- 2.Qxc4#
- 2.bxc4#
- 1...Bd3
- 2.Sc3#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Se7#
- 1...Se3
- 2.Sc3#
- 1...Rd3
- Tries
- 1.Rb6?
- threat
- 2.Rxc5#
- 1...Rd3
- 2.Qxc4#
- 1...Bd3
- 2.Sc3#
- 1...Bd6
- 2.Rxd6#
- 1...Rc7
- 2.Rd6#
- 1...Bc7
- 2.Se7#
- 1...cxb4!
- threat
- 1.R8c7?
- threat
- 2.Se7#
- 2.Rd6#
- 1...Rxc7
- 2.Rd6#
- 1...Bxc7
- 2.Se7#
- 1...fxg6
- 2.Rd6#
- 1...Rd3
- 2.Qxc4#
- 1...Bd3
- 2.Sc3#
- 1...Qh2
- 2.Se7#
- 1...Qg3
- 2.Se7#
- 1...Qh4
- 2.Rd6#
- 1...Re3
- 2.Sf4#
- 2.Rd6#
- 1...Ra6
- 2.Se7#
- 1...Sf6
- 2.Rd6#
- 1...f6
- 2.Rd6#
- 1...Rf6!
- threat
- 1.Rd8+?
- 1...Rd7
- 2.Se7#
- 1...Bd6
- 2.Rcxd6#
- 2.Rdxd6#
- 1...Kxc6!
- 1...Rd7
- 1.Re8?
- threat
- 2.Rxc5#
- 2.Qe4#
- 1...cxb4
- 2.Qe4#
- 1...Rd3
- 2.Rxc5#
- 1...Re3
- 2.Rxc5#
- 1...Rf4
- 2.Rxc5#
- 1...Rc7
- 2.Rd6#
- 2.Qe4#
- 1...Re7
- 2.Sxe7#
- 1...Bd3
- 2.Rxc5#
- 1...Be5
- 2.Rxc5#
- 1...Bd6
- 2.Rxd6#
- 2.Qe4#
- 1...Sf2
- 2.Rxc5#
- 1...Se5
- 2.Rxc5#
- 1...Sf6
- 2.Rxc5#
- 1...f5
- 2.Rxc5#
- 1...Kxc6!
- threat
- 1.Qd3+?
- 1...Bxd3
- 2.Sc3#
- 1...cxd3
- 2.Sc3#
- 1...Rxd3!
- 1...Bxd3
- 1.Qf5+?
- 1...Be5
- 2.Rxc5#
- 2.Rd6#
- 1...Se5
- 2.Rxc5#
- 1...Rxf5!
- 1...Be5
- 1.d3?
- threat
- 2.Sc3#
- 2.Qxc4#
- 2.bxc4#
- 1...Rxd3
- 2.Qxc4#
- 1...Bxd3
- 2.Sc3#
- 1...cxb3
- 2.Sc3#
- 2.Qc4#
- 2.Qxc5#
- 1...cxd3
- 2.Sc3#
- 2.Qc4#
- 1...cxb4
- 2.Qxc4#
- 2.bxc4#
- 1...Rc7
- 2.Rd6#
- 1...Bd6
- 2.Rxd6#
- 2.Qxc4#
- 1...Bc7
- 2.Se7#
- 1...Rf4
- 2.Sc3#
- 1...Rf6
- 2.Qxc4#
- 2.bxc4#
- 1...Be5
- 2.Qxc4#
- 2.bxc4#
- 1...Se3
- 2.Sc3#
- 1...Sf6
- 2.Qxc4#
- 2.bxc4#
- 1...c3
- 2.Sxc3#
- 1...f6
- 2.Qxc4#
- 2.bxc4#
- 1...Se5!
- threat
- 1.Rb6?
- Keys
- 1.Sf8!
- threat
- 2.Rxc5#
- 1...cxb4
- 2.Rc5#
- 1...Rd3
- 2.Qxc4#
- 1...Rc7
- 2.Rd6#
- 1...Bd3
- 2.Sc3#
- 1...Bd6
- 2.Rxd6#
- threat
- 1.Sf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(b);S_CUTB(a)::QAB1(A),XP(d)
- R(i);N_GUARD::S(G)
- R(i);S_CUTB(k)::R1(F)
- R(i);N_GUARD::S(G),XR(i)
- B(a);S_CUTR(b)::S(E)
- B(k);N_GUARD::R1(F),XB(k)
- B(k);S_CUTR(i)::S(G)
- S(e);S_CUTR(b)::S(E)
- Tries
- Try
- R(F);
- Threat
- R1(I),XP(f)
- Vars
- R(b);S_CUTB(a)::QAB1(A),XP(d)
- B(a);S_CUTR(b)::S(E)
- B(k);N_GUARD::R1(F),XB(k)
- R(i);S_CUTB(k)::R1(F)
- B(k);S_CUTR(i)::S(G)
- Refutation
- P(f);XP(D)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(i);XR(I)::R1(F)
- B(k);XR(I)::S(G)
- P(j);XS(G)::R1(F)
- R(b);S_CUTB(a)::QAB1(A),XP(d)
- B(a);S_CUTR(b)::S(E)
- Q(c);::S(G)
- Q(c);::R1(F)
- R(i);::S(G)
- S(e);::R1(F)
- P(j);::R1(F)
- Refutation
- R(b);
- Try
- R(I);CHECK
- Vars
- R(i);P_SPINR(i)::S(G)
- Refutation
- K(g);S_FLIGHT,XR(F)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- P(f);XP(D)::QAB1(A)
- R(b);::R1(F),XP(f)
- R(i);N_GUARD::S(G),XR(i)
- B(a);::R1(F),XP(f)
- B(k);P_PINB(H)::R1(F),XP(f)
- S(e);::R1(F),XP(f)
- P(j);::R1(F),XP(f)
- Refutation
- K(g);S_FLIGHT,XR(F)
- Try
- Q(A);CHECK
- Vars
- B(a);XQ(A)::S(E)
- P(d);XQ(A)::S(E)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(e);P_SPINS(e)::R1(F),XP(f)
- Refutation
- R(b);XQ(A)
- Try
- P(B);
- Threat
- DUALS(3)
- Vars
- R(b);XP(B)::QAB1(A),XP(d)
- B(a);XP(B)::S(E)
- R(i);S_CUTB(k)::R1(F)
- B(k);S_CUTR(i)::S(G)
- R(b);::S(E)
- S(e);::S(E)
- P(d);::S(E),XP(d)
- Refutation
- S(e);
- Try
- Actual
- S(G);
- Threat
- R1(F),XP(f)
- Vars
- P(f);XP(D)::R1(F)
- R(b);S_CUTB(a)::QAB1(A),XP(d)
- R(i);S_CUTB(k)::R1(F)
- B(a);S_CUTR(b)::S(E)
- B(k);N_GUARD::R1(F),XB(k)
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