MESON Chess Problem Database
Problem Display
PID: 81594 (4B1b1/n3P1nq/1R3B1p/P1k5/P2R2P1/2Np3K/1N5P/r7 w - - 0 1)
Stoyanov, Kiril N
Comm., Leipzig Olympic Ty., 1960
#2
12 + 8
| 56 | The Problemist | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Sxe4#
- 1...Qh8
- 2.Sxd3#
- 2.Se4#
- 1...Rxa4
- 2.Sbxa4#
- 2.Scxa4#
- 1...Bc4
- 2.Rxc4#
- 1...Bd5
- 2.Rxd5#
- 1...Sb5
- 2.Rxb5#
- 2.Rc6#
- 1...Sc6
- 2.Rb5#
- 2.Rxc6#
- 1...Sc8
- 2.Rb5#
- 2.Rc6#
- 1...Sf5
- 2.Sxd3#
- 2.Se4#
- 1...Se6
- 2.Rc4#
- 2.Rd5#
- 1...Qe4
- Tries
- 1.Bg6?
- threat
- 2.Sxd3#
- 2.Se4#
- 1...Rd1
- 2.Se4#
- 1...Re1
- 2.Sxd3#
- 1...Bc4
- 2.Se4#
- 2.Rxc4#
- 1...Bd5
- 2.Sxd3#
- 2.Rxd5#
- 1...d2
- 2.Sd3#
- 2.Se4#
- 1...Qxg6!
- threat
- 1.Bf7?
- threat
- 2.Rc4#
- 2.Rd5#
- 1...Rxa4
- 2.Sbxa4#
- 2.Scxa4#
- 2.Rd5#
- 1...Qf5
- 2.Rc4#
- 1...Qe4
- 2.Sxe4#
- 1...Sb5
- 2.Rc4#
- 1...Sc6
- 2.Rd5#
- 2.Rb5#
- 1...Bxf7!
- threat
- 1.Rxd3?
- threat
- 2.Bd4#
- 1...Rxa4
- 2.Scxa4#
- 1...Sb5
- 2.Rxb5#
- 1...Qe4
- 2.Sxe4#
- 1...Sc6
- 2.Rb5#
- 1...Sf5
- 2.Se4#
- 1...Se6
- 2.Rd5#
- 1...Qxd3+!
- threat
- 1.Re4?
- threat
- 2.Sxd3#
- 2.Bd4#
- 1...Rxa4
- 2.Sxd3#
- 2.Sbxa4#
- 1...Sc6
- 2.Rxc6#
- 1...Rd1
- 2.Bd4#
- 1...Bc4
- 2.Bd4#
- 2.Rxc4#
- 1...Sb5
- 2.Sxd3#
- 2.Rc6#
- 1...Sf5
- 2.Sxd3#
- 1...Se6
- 2.Sxd3#
- 2.Rc4#
- 1...d2
- 2.Sd3#
- 2.Bd4#
- 1...Qxe4!
- threat
- 1.Rf4?
- threat
- 2.Bd4#
- 1...Rxa4
- 2.Sbxa4#
- 1...Sc6
- 2.Rxc6#
- 1...Sb5
- 2.Rc6#
- 1...Sf5
- 2.Sxd3#
- 1...Se6
- 2.Rc4#
- 1...Qe4!
- threat
- 1.Rdd6?
- threat
- 2.Bd4#
- 1...Rxa4
- 2.Scxa4#
- 1...Sc6
- 2.Rdxc6#
- 1...Qe4
- 2.Sxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Sf5
- 2.Se4#
- 1...Se6
- 2.Rd5#
- 1...Sb5!
- threat
- 1.Rd7?
- threat
- 2.Bd4#
- 1...Rxa4
- 2.Scxa4#
- 1...Qe4
- 2.Sxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Sc6
- 2.Rb5#
- 1...Sf5
- 2.Se4#
- 1...Se6
- 2.Rd5#
- 1...Sb5!
- threat
- 1.Bg6?
- Keys
- 1.Rd8!
- threat
- 2.Bd4#
- 1...Rxa4
- 2.Scxa4#
- 1...Sb5
- 2.Rxb5#
- 1...Qe4
- 2.Sxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Sc6
- 2.Rb5#
- 1...Sf5
- 2.Se4#
- 1...Se6
- 2.Rd5#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- Q(g);N_GUARD::S(C),XQ(g)
- B(h);N_GUARD::R1(F),XB(h)
- Tries
- Try
- B(L);
- Threat
- DUALS(2)
- Vars
- R(a);::S(C)
- R(a);::S(A),XP(b)
- Refutation
- Q(g);XB(L)
- Try
- B(L);
- Threat
- DUALS(2)
- Vars
- Q(g);P_PINP(G)::R1(F)
- Q(g);N_GUARD::S(C),XQ(g)
- S(e);::R1(F)
- Refutation
- B(h);XB(L)
- Try
- R(F);XP(b)
- Threat
- B(J)
- Vars
- R(a);XP(E)::S(C),XR(a)
- S(e);N_GUARD::R1(I),XS(e)
- Q(g);N_GUARD::S(C),XQ(g)
- S(e);N_GUARD::R1(I)
- S(f);S_CUTQ(g)::S(C)
- S(f);S_CUTB(h)::R1(F)
- Refutation
- Q(g);CHECK,XR(F)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD::R1(I),XS(e)
- R(a);::B(J)
- S(f);::S(A),XP(b)
- Refutation
- Q(g);XR(F)
- Try
- R(F);
- Threat
- B(J)
- Vars
- R(a);XP(E)::S(A),XR(a)
- S(e);N_GUARD::R1(I),XS(e)
- S(e);N_GUARD::R1(I)
- S(f);S_CUTQ(g)::S(A),XP(b)
- S(f);S_CUTB(h)::R1(F)
- Refutation
- Q(g);
- Try
- R(F);
- Threat
- B(J)
- Vars
- R(a);XP(E)::S(C),XR(a)
- S(e);N_GUARD::R1(F),XS(e)
- Q(g);N_GUARD::S(C),XQ(g)
- B(h);N_GUARD::R1(F),XB(h)
- S(f);S_CUTQ(g)::S(C)
- S(f);S_CUTB(h)::R1(F)
- Refutation
- S(e);
- Try
- R(F);
- Threat
- B(J)
- Vars
- R(a);XP(E)::S(C),XR(a)
- Q(g);N_GUARD::S(C),XQ(g)
- B(h);N_GUARD::R1(F),XB(h)
- S(e);N_GUARD,SBLOCK::R1(I)
- S(f);S_CUTQ(g)::S(C)
- S(f);S_CUTB(h)::R1(F)
- Refutation
- S(e);
- Try
- Actual
- R(F);
- Threat
- B(J)
- Vars
- R(a);XP(E)::S(C),XR(a)
- S(e);N_GUARD::R1(I),XS(e)
- Q(g);N_GUARD::S(C),XQ(g)
- B(h);N_GUARD::R1(F),XB(h)
- S(e);N_GUARD::R1(I)
- S(f);S_CUTQ(g)::S(C)
- S(f);S_CUTB(h)::R1(F)
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