MESON Chess Problem Database
Problem Display
PID: 89854 (1Kn1n1Q1/R2p4/P1kB1pNR/P7/Pp1rN3/1B4P1/q7/8 w - - 0 1)
Yarmonov, Igor Petrovich
Die Schwalbe, 1996
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxa4
- 2.Bxa4#
- 1...Rd1
- 2.Qc4#
- 1...Rd2
- 2.Qc4#
- 1...Rd3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rxd6
- 2.Qc4#
- 1...Sb6
- 2.Se7#
- 1...Scxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sexd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...Sg7
- 2.Rc7#
- 2.Qxc8#
- 1...f5
- 2.Se5#
- 1...Qxa4
- Tries
- 1.Kxc8?
- threat
- 2.Se7#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Sxd6+!
- threat
- 1.Bxa2?
- 1...Rxe4
- 2.Qd5#
- 1...Rxd6
- 2.Qc4#
- 1...Scxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Sexd6
- 2.Rc7#
- 1...Rd1
- 2.Qc4#
- 1...Rd2
- 2.Qc4#
- 1...Rd3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Rd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Sb6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sc7
- 2.Rxc7#
- 1...Sg7
- 2.Rc7#
- 2.Qxc8#
- 1...f5
- 2.Se5#
- 1...b3!
- 1...Rxe4
- 1.Bxb4?
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc4#
- 1...Scd6
- 2.Se7#
- 1...Sed6
- 2.Rc7#
- 1...d6
- 2.Qxe8#
- 1...Rxb4+!
- threat
- 1.Bc5?
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Scd6
- 2.Se7#
- 1...Sed6
- 2.Rc7#
- 1...d6
- 2.Qxe8#
- 1...Rd6!
- threat
- 1.Bc7?
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...d6
- 2.Qxe8#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc4#
- 1...Scd6
- 2.Se7#
- 1...Sed6!
- threat
- 1.Be7?
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc4#
- 1...Sed6
- 2.Rc7#
- 1...d6
- 2.Qxe8#
- 1...Scd6!
- threat
- 1.Bf8?
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc4#
- 1...Scd6
- 2.Se7#
- 1...Sed6
- 2.Rc7#
- 1...d6!
- threat
- 1.Rh5?
- threat
- 2.Rc5#
- 1...Rxe4
- 2.Qd5#
- 1...Rc4
- 2.Qxc4#
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...f5
- 2.Se5#
- 1...Qc2!
- threat
- 1.Qf7?
- threat
- 2.Qxd7#
- 1...Rxd6
- 2.Qc4#
- 1...Sxa7
- 2.Se7#
- 1...Rc4
- 2.Qxc4#
- 1...Sb6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sc7
- 2.Rxc7#
- 1...Qxb3!
- threat
- 1.Kxc8?
- Keys
- 1.Bf4!
- threat
- 2.Se5#
- 1...Qxa4
- 2.Bxa4#
- 1...Rxe4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc4#
- 1...Scd6
- 2.Se7#
- 1...Sed6
- 2.Rc7#
- 1...d6
- 2.Qxe8#
- threat
- 1.Bf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD::QAR2(L)
- R(c);N_GUARD::QAR2(L),XR(c)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD,XB(G)::QAR2(L)
- S(g);N_GUARD::S(H)
- S(g);N_GUARD,XB(G)::S(H)
- S(g);N_GUARD,XR(J)::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(h);N_GUARD,XB(G)::R1(J)
- S(h);N_GUARD::R1(J),XS(h)
- P(e);N_GUARD::S(H)
- Tries
- Try
- K(K);P-FLIGHT,XS(g)
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- Refutation
- S(h);CHECK,XB(G)
- Try
- B(A);XQ(a)
- Vars
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD,XB(G)::QAR2(L)
- S(g);N_GUARD,XB(G)::S(H)
- S(g);N_GUARD,XR(J)::S(H)
- S(h);N_GUARD,XB(G)::R1(J)
- R(c);N_GUARD::QAR2(L)
- R(c);N_GUARD::QAR2(L),XR(c)
- S(g);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(h);N_GUARD::R1(J),XS(h)
- P(e);N_GUARD::S(H)
- Refutation
- P(b);
- Try
- B(G);XP(b)
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD::QAR2(L)
- S(g);N_GUARD::S(H)
- S(h);N_GUARD::R1(J)
- P(f);OGATEB::QAB(L),XS(h)
- Refutation
- R(c);CHECK,XB(G)
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- S(g);N_GUARD::S(H)
- S(h);N_GUARD::R1(J)
- P(f);OGATEB::QAB(L),XS(h)
- Refutation
- R(c);
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- P(f);OGATEB::QAB(L),XS(h)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD::QAR2(L)
- S(g);N_GUARD::S(H)
- Refutation
- S(h);
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD::QAR2(L)
- S(h);N_GUARD::R1(J)
- P(f);OGATEB::QAB(L),XS(h)
- Refutation
- S(g);
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD::QAR2(L)
- S(g);N_GUARD::S(H)
- S(h);N_GUARD::R1(J)
- Refutation
- P(f);
- Try
- R(I);
- Threat
- R1(I)
- Vars
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- P(e);N_GUARD::S(H)
- Refutation
- Q(a);
- Try
- Q(L);
- Threat
- QAB1(L),XP(f)
- Vars
- R(c);N_GUARD,XB(G)::QAR2(L)
- S(g);N_GUARD,XR(J)::S(H)
- R(c);N_GUARD::QAR2(L),XR(c)
- S(g);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(h);N_GUARD::R1(J),XS(h)
- Refutation
- Q(a);XB(A)
- Try
- Actual
- B(G);
- Threat
- S(H)
- Vars
- Q(a);OGATE,XP(C)::B(A),XQ(a)
- R(c);N_GUARD,XS(D)::QAB1(L)
- R(c);N_GUARD::QAB1(L),XR(c)
- R(c);N_GUARD::QAR2(L)
- S(g);N_GUARD::S(H)
- S(h);N_GUARD::R1(J)
- P(f);OGATEB::QAB(L),XS(h)
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