MESON Chess Problem Database
Problem Display
PID: 137165 (8/4Pr2/3BP2R/1R1N1k1p/4N1p1/K5nr/2P2PP1/4Qb1n w - - 0 1)
Kovacevic, Marjan
3rd Prize, Liga Problemista, 1992-1994/2
#2
12 + 8
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rf6
- 2.Rxf6#
- 1...Rxe7
- 2.Sxe7#
- 2.Rf6#
- 1...Rg7
- 2.Rf6#
- 1...Rh7
- 2.Rf6#
- 1...Rf8
- 2.exf8Q#
- 2.exf8R#
- 1...Bxg2
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Rf6
- Tries
- 1.Sd2?
- threat
- 2.Se3#
- 2.Qe5#
- 1...Se2+
- 2.Sc3#
- 2.Se3#
- 1...Se4+
- 2.Se3#
- 1...Bxb5
- 2.Qe5#
- 1...Rf6
- 2.Qe5#
- 1...Be2
- 2.Se3#
- 1...Kg5!
- threat
- 1.Sec3?
- threat
- 2.Se3#
- 2.Qe5#
- 1...Bxb5
- 2.Qe5#
- 1...Rf6
- 2.Qe5#
- 1...Be2
- 2.Se3#
- 1...Se2
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Se4
- 2.Se3#
- 1...Kg5!
- threat
- 1.Sg5?
- threat
- 2.Se3#
- 2.Qe5#
- 1...Se2+
- 2.Sc3#
- 2.Se3#
- 1...Se4+
- 2.Se3#
- 1...Bxb5
- 2.Qe5#
- 1...Be2
- 2.Se3#
- 1...Kxg5!
- threat
- 1.Sdf6+?
- 1...Kxe6
- 2.Re5#
- 1...Bxb5!
- 1...Kxe6
- 1.Rc5?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Rf6
- 2.Sf4#
- 2.Sc7#
- 2.Rxf6#
- 1...Be2
- 2.Sdc3#
- 1...Bc4!
- threat
- 1.Qd2?
- threat
- 2.Qf4#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Kxe4
- 2.Sc3#
- 1...Rf6!
- threat
- 1.Qc3?
- threat
- 2.Qe5#
- 1...Kxe4
- 2.Qe5#
- 1...Sxe4
- 2.Se3#
- 1...Se2!
- threat
- 1.Qb4?
- threat
- 2.Se3#
- 1...Rf6
- 2.Rxf6#
- 1...Bc4!
- threat
- 1.Qxf1?
- threat
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Kxe4
- 2.Qd3#
- 1...Rf6!
- threat
- 1.Qe2?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Sxe2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Rf6
- 2.Sf4#
- 2.Sc7#
- 2.Rxf6#
- 1...Bxe2!
- threat
- 1.Qe3?
- threat
- 2.Qf4#
- 1...Rf6
- 2.Rxf6#
- 1...Se2
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Sxe4!
- threat
- 1.c4?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Rf6
- 2.Sf4#
- 2.Sc7#
- 2.Rxf6#
- 1...Be2
- 2.Sdc3#
- 1...Bxc4!
- threat
- 1.f3?
- threat
- 2.Se3#
- 1...Rf6
- 2.Rxf6#
- 1...gxf3!
- threat
- 1.exf7?
- threat
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Bxg2
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sc7#
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bxb5
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Sxf2
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rh2
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rh4
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bd3
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bc4
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...h4
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Be2!
- threat
- 1.Sd2?
- Keys
- 1.Qa1!
- threat
- 2.Qe5#
- 1...Se2+
- 2.Sdc3#
- 1...Sxe4+
- 2.Se3#
- 1...Kxe4
- 2.Qe5#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(h);N_GUARD::R1(K),XR(h)
- R(h);N_GUARD::R1(K)
- R(h);OGATE::PXR(h)=Q
- S(c);CHECK,S_CUTB(a)::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK::R(G)+S(H),DCHECK
- B(a);XR(G)::QAR1(A)
- R(h);::QAR1(A)
- B(a);::R(G)+S(H),DCHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(a);XR(G)::QAR1(A)
- R(h);::QAR1(A)
- B(a);::R(G)+S(H),DCHECK
- S(c);P_PINS(F)::R(G)+S(H),DCHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK::R(G)+S(H),DCHECK
- B(a);XR(G)::QAR1(A)
- B(a);::R(G)+S(H),DCHECK
- Refutation
- K(f);P-FLIGHT,XS(F)
- Try
- S(H);CHECK
- Vars
- K(f);S_FLIGHT,XP(J)::R1(G)
- Refutation
- B(a);XR(G)
- Try
- R(G);
- Threat
- DUALS(5)
- Vars
- S(c);CHECK::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- B(a);::R(G)+S(H)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(c);CHECK,S_CUTB(a)::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- K(f);S_FLIGHT,XS(F)::S(H)
- Refutation
- R(h);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- K(f);S_FLIGHT,XS(F)::QAR1(A)
- S(c);P_PINQ(A),SBLOCK,XS(F)::R(G)+S(H),DCHECK
- Refutation
- S(c);P_PINQ(A)
- Try
- Q(A);
- Threat
- R(G)+S(H),DCHECK
- Vars
- R(h);N_GUARD::R1(K),XR(h)
- Refutation
- B(a);
- Try
- Q(A);XB(a)
- Threat
- R(G)+S(H)
- Vars
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- K(f);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- Refutation
- R(h);
- Try
- Q(A);
- Threat
- DUALS(5)
- Vars
- S(c);CHECK,XQ(A)::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(h);N_GUARD::R1(K),XR(h)
- Refutation
- S(c);P_PINQ(A),XS(F)
- Try
- P(B);
- Threat
- DUALS(5)
- Vars
- S(c);CHECK::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- B(a);::R(G)+S(H)
- Refutation
- B(a);XP(B)
- Try
- P(C);
- Threat
- R(G)+S(H),DCHECK
- Vars
- R(h);N_GUARD::R1(K),XR(h)
- Refutation
- P(e);XP(C)
- Try
- P(J);XR(h)
- Threat
- DUALS(3)
- Vars
- S(c);CHECK,S_CUTB(a)::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- Refutation
- B(a);
- Try
- Actual
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(c);CHECK,S_CUTB(a)::R(G)+S(H)
- S(c);CHECK,SBLOCK,XS(F)::R(G)+S(H),DCHECK
- K(f);S_FLIGHT,XS(F)::QAR1(A)
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