MESON Chess Problem Database
Problem Display
PID: 109397 (n1N3bq/7r/2R1BR2/1k5r/3B4/KN6/7b/7Q w - - 0 1)
Shajgarovski, Svetlin Ivanov
Thema Danicum, 1992
#2
8 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh3
- 2.Qd5#
- 1...Rh4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Sd6#
- 1...R5h6
- 2.Qd5#
- 1...R7h6
- 2.Sa7#
- 1...Ra7+
- 2.Sxa7#
- 1...Rf7
- 2.Bc4#
- 1...Bg1
- 2.Sd6#
- 1...Be5
- 2.Qd5#
- 1...Bd6+
- 2.Sxd6#
- 1...Bc7
- 2.Sa7#
- 1...Bf7
- 2.Sa7#
- 1...Sb6
- 2.Rxb6#
- 1...Sc7
- 2.Sa7#
- 2.Rb6#
- 1...Rh3
- Tries
- 1.Be5?
- threat
- 2.Sd6#
- 2.Qd5#
- 1...Ra7+
- 2.Sxa7#
- 1...Rxe5
- 2.Sd6#
- 1...Bxe5
- 2.Qd5#
- 1...Bxe6
- 2.Sd6#
- 1...Sb6
- 2.Rxb6#
- 1...Bg1
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 2.Sa7#
- 2.Rb6#
- 1...Rd7!
- threat
- 1.Bd5?
- threat
- 2.Rc5#
- 2.Qf1#
- 1...Ra7+
- 2.Sxa7#
- 1...Bd6+
- 2.Sxd6#
- 1...Rxd5
- 2.Qf1#
- 1...Bxd5
- 2.Rc5#
- 1...Sb6
- 2.Rxb6#
- 1...Rh3
- 2.Rc5#
- 1...Re5
- 2.Sd6#
- 2.Rc5#
- 1...Rf5
- 2.Rc5#
- 1...Rc7
- 2.Qf1#
- 1...Re7
- 2.Rc5#
- 1...Bg1
- 2.Sd6#
- 2.Rc5#
- 1...Be6
- 2.Qf1#
- 1...Qxf6!
- threat
- 1.Bxg8?
- threat
- 2.Bc4#
- 2.Qf1#
- 1...Ra7+
- 2.Sxa7#
- 1...Bd6+
- 2.Sxd6#
- 1...Qxf6
- 2.Bc4#
- 1...Sb6
- 2.Rxb6#
- 1...Rh3
- 2.Bc4#
- 2.Rc5#
- 2.Qd5#
- 1...Rc5
- 2.Rxc5#
- 1...Rd5
- 2.Qxd5#
- 2.Qf1#
- 1...Re5
- 2.Sd6#
- 2.Bc4#
- 1...Rf5
- 2.Bc4#
- 1...Re7
- 2.Bc4#
- 1...Rf7
- 2.Qf1#
- 1...Bg1
- 2.Sd6#
- 2.Bc4#
- 1...Qxg8!
- threat
- 1.Rc5+?
- 1...Ka6
- 2.Bc4#
- 1...Rxc5!
- 1...Ka6
- 1.Ra6?
- threat
- 2.Ra5#
- 2.Qc6#
- 2.Qf1#
- 1...Kxa6
- 2.Bc4#
- 1...Qxf6
- 2.Ra5#
- 2.Qc6#
- 1...Bxe6
- 2.Qc6#
- 1...Rd5
- 2.Qf1#
- 1...Rh3
- 2.Ra5#
- 2.Qc6#
- 1...Rc5
- 2.Ra5#
- 1...Re5
- 2.Ra5#
- 2.Qc6#
- 1...Rf5
- 2.Ra5#
- 2.Qc6#
- 1...Ra7
- 2.Qc6#
- 2.Qf1#
- 1...Rc7
- 2.Ra5#
- 1...Bg1
- 2.Ra5#
- 2.Qc6#
- 1...Bc7
- 2.Qc6#
- 2.Qf1#
- 1...Sb6
- 2.Ra5#
- 2.Rxb6#
- 1...Bd6+!
- threat
- 1.Rf5+?
- 1...Qe5
- 2.Sd6#
- 1...Be5
- 2.Sd6#
- 2.Qd5#
- 1...Rxf5!
- 1...Qe5
- 1.Rf7?
- threat
- 2.Sa7#
- 2.Bc4#
- 1...Bd6+
- 2.Sxd6#
- 1...Rxf7
- 2.Bc4#
- 1...Bxf7
- 2.Sa7#
- 1...Rd5
- 2.Sa7#
- 2.Qxd5#
- 1...Sb6
- 2.Rxb6#
- 1...Rc5
- 2.Sa7#
- 1...Bb8
- 2.Bc4#
- 1...Qxd4!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 1...Ra7+
- 2.Sxa7#
- 1...Bd6+
- 2.Sxd6#
- 1...Rc5
- 2.Qxc5#
- 1...Sb6
- 2.Rxb6#
- 1...Bxe6!
- threat
- 1.Be5?
- Keys
- 1.Bf7!
- threat
- 2.Sa7#
- 2.Qf1#
- 1...Bd6+
- 2.Sxd6#
- 1...Qxf6
- 2.Sa7#
- 1...Rxf7
- 2.Qf1#
- 1...Bxf7
- 2.Sa7#
- 1...Sb6
- 2.Rxb6#
- 1...Rh3
- 2.Sa7#
- 2.Rc5#
- 2.Qd5#
- 1...Rc5
- 2.Sa7#
- 2.Rxc5#
- 1...Re5
- 2.Sd6#
- 2.Sa7#
- 1...Rf5
- 2.Sa7#
- 1...Bg1
- 2.Sd6#
- 2.Sa7#
- 1...Bb8
- 2.Qf1#
- threat
- 1.Bf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(c);N_GUARD,P_PINS(C)::QAR2(A)
- R(c);N_GUARD::QAR2(A)
- R(c);N_GUARD::QAR2(A),XR(c)
- R(c);S_CUTB(a)::S(H)
- R(d);N_GUARD::S(H)
- R(d);CHECK,N_GUARD::S(H),XR(d)
- R(d);S_CUTB(f)::B(F)
- B(a);N_GUARD::S(H)
- B(a);S_CUTR(c)::QAR2(A)
- B(a);CHECK,N_GUARD::S(H),XB(a)
- B(a);S_CUTR(d)::S(H)
- B(f);S_CUTR(d)::S(H)
- S(e);N_GUARD::R1(E),XS(e)
- Tries
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,N_GUARD::S(H),XR(d)
- R(c);XB(D)::S(H)
- B(a);XB(D)::QAR2(A)
- B(f);XB(F)::S(H)
- S(e);N_GUARD::R1(E),XS(e)
- B(a);::S(H)
- Refutation
- R(d);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,N_GUARD::S(H),XR(d)
- B(a);CHECK,N_GUARD::S(H),XB(a)
- R(c);XB(F)::QAB(A)
- B(f);XB(F)::R1(E)
- S(e);N_GUARD::R1(E),XS(e)
- R(c);P_PINS(C)::R1(E)
- R(c);::R1(E)
- R(d);::QAB(A)
- R(d);::R1(E)
- B(f);::QAB(A)
- Refutation
- Q(g);XR(G)
- Try
- B(F);XB(f)
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,N_GUARD::S(H),XR(d)
- B(a);CHECK,N_GUARD::S(H),XB(a)
- Q(g);XR(G)::B(F)
- S(e);N_GUARD::R1(E),XS(e)
- R(c);N_GUARD::R1(E),XR(c)
- R(c);::B(F)
- R(d);::B(F)
- R(d);::QAB(A)
- Refutation
- Q(g);XB(F)
- Try
- R(E);CHECK
- Vars
- K(b);S_FLIGHT::R(G)+B(F),DCHECK
- Refutation
- R(c);XR(E)
- Try
- R(E);
- Threat
- DUALS(3)
- Vars
- K(b);S_FLIGHT,XR(E)::R(G)+B(F),DCHECK
- B(f);XB(F)::QAB1(A)
- R(c);::QAB(A)
- R(c);::R1(E)
- R(d);::R1(E)
- Refutation
- B(a);CHECK
- Try
- R(G);CHECK
- Vars
- Q(g);P_SPINQ(g)::S(H)
- Refutation
- R(c);XR(G)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- R(d);XR(G)::B(F)
- B(f);XR(G)::S(H)
- S(e);N_GUARD::R1(E),XS(e)
- R(c);::S(H)
- B(a);::B(F)
- Refutation
- Q(g);XB(D)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(d);CHECK,N_GUARD::S(H),XR(d)
- B(a);CHECK,N_GUARD::S(H),XB(a)
- R(c);N_GUARD::QAR1(A),XR(c)
- S(e);N_GUARD::R1(E),XS(e)
- Refutation
- B(f);XB(F)
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- Q(g);XR(G)::S(H)
- R(d);XB(F)::QAB(A)
- B(f);XB(F)::S(H)
- S(e);N_GUARD::R1(E),XS(e)
- R(c);::S(H)
- B(a);::QAB(A)
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