MESON Chess Problem Database
Problem Display
PID: 109746 (6b1/Q2Knp2/3R3R/4k1N1/p3PN2/r7/8/1BB3b1 w - - 0 1)
Zagoruyko, Leonid Ivanovich
Telescacco 92, 1997
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sd3#
- 2.Sf3#
- 1...Ra2
- 2.Sd3#
- 2.Sf3#
- 1...Rd3
- 2.Sxd3#
- 1...Rf3
- 2.Sxf3#
- 1...Bh2
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...Bh7
- 2.Sxf7#
- 1...Sd5
- 2.Rxd5#
- 1...Sf5
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Ra1
- Tries
- 1.Se2?
- threat
- 2.Bf4#
- 1...Re3
- 2.Qd4#
- 1...Rf3
- 2.Sxf3#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Sf3#
- 1...Sd5
- 2.Rxd5#
- 1...Sg6!
- threat
- 1.Sg2?
- threat
- 2.Bf4#
- 1...Re3
- 2.Qd4#
- 1...Rf3
- 2.Sxf3#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Sf3#
- 1...Sd5
- 2.Rxd5#
- 1...Sg6!
- threat
- 1.Bd3?
- threat
- 2.Sf3#
- 1...Rxd3
- 2.Sxd3#
- 1...Be3!
- threat
- 1.Qxg1?
- threat
- 2.Qd4#
- 1...Rd3
- 2.Sxd3#
- 1...Sd5
- 2.Rxd5#
- 1...Sf5
- 2.Rd5#
- 2.Qc5#
- 1...Sc6
- 2.Rd5#
- 2.Qc5#
- 1...Re3!
- threat
- 1.Qc5+?
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Bxc5!
- 1...Sd5
- 1.Qb8?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Rb3
- 2.Rd5#
- 1...Rc3
- 2.Rd5#
- 1...Rd3
- 2.Sxd3#
- 2.Rxd3#
- 2.Rd5#
- 1...Bd4
- 2.Rd5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rde6#
- 2.Rdf6#
- 2.Rdg6#
- 1...Bc5
- 2.Rd5#
- 1...Bb6
- 2.Rd5#
- 1...Ba7
- 2.Rd5#
- 1...Sf5
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg6!
- threat
- 1.Qa5+?
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Bc5!
- 1...Sd5
- 1.Qc7?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Rc3
- 2.Rd5#
- 1...Rd3
- 2.Sxd3#
- 2.Rxd3#
- 2.Rd5#
- 1...Bd4
- 2.Rd5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rde6#
- 2.Rdf6#
- 2.Rdg6#
- 1...Bc5
- 2.Rd5#
- 1...Bb6
- 2.Rd5#
- 1...Sf5
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg6!
- threat
- 1.Se2?
- Keys
- 1.Sh5!
- threat
- 2.Bf4#
- 1...Sg6
- 2.Rd5#
- 1...Re3
- 2.Qd4#
- 1...Rf3
- 2.Sxf3#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Sf3#
- 1...Sd5
- 2.Rxd5#
- threat
- 1.Sh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(b);N_GUARD,P_PINR(F)::S(D),XR(b)
- R(b);N_GUARD::S(E),XR(b)
- B(a);N_GUARD::QAB1(H)
- B(a);N_GUARD::QAB1(H),XB(a)
- B(g);N_GUARD::S(E),XP(f)
- S(e);N_GUARD::R1(F),XS(e)
- S(e);N_GUARD::R1(F)
- Tries
- Try
- S(D);
- Threat
- B(B)
- Vars
- R(b);S_CUTB(a)::QAB1(H)
- R(b);N_GUARD::S(E),XR(b)
- B(a);N_GUARD::QAB1(H)
- B(a);S_CUTR(b)::S(E)
- S(e);N_GUARD::R1(F),XS(e)
- Refutation
- S(e);
- Try
- S(D);
- Threat
- B(B)
- Vars
- R(b);S_CUTB(a)::QAB1(H)
- R(b);N_GUARD::S(E),XR(b)
- B(a);N_GUARD::QAB1(H)
- B(a);S_CUTR(b)::S(E)
- S(e);N_GUARD::R1(F),XS(e)
- Refutation
- S(e);
- Try
- B(A);
- Threat
- S(E)
- Vars
- R(b);P_PINR(F),XB(A)::S(D),XR(b)
- Refutation
- B(a);
- Try
- Q(H);XB(a)
- Threat
- QAB1(H)
- Vars
- R(b);N_GUARD,P_PINR(F)::S(D),XR(b)
- S(e);N_GUARD::R1(F),XS(e)
- Refutation
- R(b);
- Try
- Q(H);CHECK
- Refutation
- B(a);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(4)
- Vars
- S(e);::QAB(H)+R(F),DCHECK,XS(e)
- R(b);::QAB(H)+R(F),DCHECK
- B(a);::QAB(H)+R(F),DCHECK
- S(e);::QAB(H)+R(F),DCHECK
- Refutation
- S(e);
- Try
- Q(H);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(H);
- Threat
- DUALS(4)
- Vars
- S(e);::QAB(H)+R(F),DCHECK,XS(e)
- R(b);::QAB(H)+R(F),DCHECK
- B(a);::QAB(H)+R(F),DCHECK
- S(e);::QAB(H)+R(F),DCHECK
- Refutation
- S(e);
- Try
- Actual
- S(D);
- Threat
- B(B)
- Vars
- S(e);N_GUARD::R1(F)
- R(b);S_CUTB(a)::QAB1(H)
- R(b);N_GUARD::S(E),XR(b)
- B(a);N_GUARD::QAB1(H)
- B(a);S_CUTR(b)::S(E)
- S(e);N_GUARD::R1(F),XS(e)
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