MESON Chess Problem Database
Problem Display
PID: 179726 (8/2p1nNP1/4NnpB/7p/6kr/3Q4/1b3PPp/3b3K w - - 0 1)
Kopnin, Aleksey Grigorevich
Lobusov, Andrey Jakovlevic
Sp. HM., Rabotschi krai, 1981
#2
8 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh3
- 2.Qxh3#
- 1...Bc2
- 2.Qf3#
- 1...Bb3
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Ba4
- 2.Qf3#
- 1...Bc1
- 2.Se5#
- 1...Ba3
- 2.Se5#
- 1...Be5
- 2.Sxe5#
- 1...Se4
- 2.Qxe4#
- 1...Sd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sfg8
- 2.Qe4#
- 1...Sd5
- 2.Qxg6#
- 1...Sf5
- 2.Qxd1#
- 1...Sc6
- 2.Qxg6#
- 1...Sc8
- 2.Qxg6#
- 1...Seg8
- 2.Qxg6#
- 1...Rh3
- Tries
- 1.Sd4?
- threat
- 2.Se5#
- 2.Qxd1#
- 2.Qg3#
- 1...Rh3
- 2.Qxh3#
- 1...g5
- 2.Qg3#
- 1...Bc2
- 2.Se5#
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Be2
- 2.Se5#
- 2.Qxe2#
- 2.Qg3#
- 1...Bb3
- 2.Se5#
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Bf3
- 2.Se5#
- 2.Qxf3#
- 1...Ba4
- 2.Se5#
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Se4
- 2.Se5#
- 2.Qxe4#
- 2.Qxd1#
- 1...Sd7
- 2.Qe4#
- 2.Qxd1#
- 2.Qg3#
- 1...Sf5
- 2.Se5#
- 2.Qxd1#
- 1...Sc6
- 2.Qxg6#
- 2.Qxd1#
- 2.Qg3#
- 1...Bxd4!
- threat
- 1.Sd6?
- threat
- 2.Qxd1#
- 2.Qg3#
- 1...Rh3
- 2.Qxh3#
- 1...Be2
- 2.Qxe2#
- 2.Qg3#
- 1...Bc2
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Bb3
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Bf3
- 2.Qxf3#
- 1...Ba4
- 2.Qe2#
- 2.Qf3#
- 2.Qg3#
- 1...Be5
- 2.Qxd1#
- 1...Se4
- 2.Qxe4#
- 2.Qxd1#
- 1...Sf5
- 2.Qxd1#
- 1...cxd6!
- threat
- 1.Bd2?
- threat
- 2.Sh6#
- 1...Rh3
- 2.Qxh3#
- 1...Sfg8
- 2.Qe4#
- 1...Seg8
- 2.Qxg6#
- 1...Sf5!
- threat
- 1.Be3?
- threat
- 2.Sh6#
- 1...Sfg8
- 2.Qe4#
- 1...Sf5
- 2.Qxd1#
- 1...Seg8
- 2.Qxg6#
- 1...Rh3!
- threat
- 1.Bf4?
- threat
- 2.Sh6#
- 1...Rh3
- 2.Qxh3#
- 1...Sf5
- 2.Qxd1#
- 1...Seg8
- 2.Qxg6#
- 1...Sfg8!
- threat
- 1.Bg5?
- threat
- 2.Sh6#
- 1...Sfg8
- 2.Qe4#
- 1...Sf5
- 2.Qxd1#
- 1...Seg8!
- threat
- 1.f3+?
- 1...Bxf3
- 2.Qxf3#
- 1...Kg3!
- 1...Bxf3
- 1.Sd4?
- Keys
- 1.Bc1!
- threat
- 2.Sh6#
- 1...Bxc1
- 2.Se5#
- 1...Rh3
- 2.Qxh3#
- 1...Sfg8
- 2.Qe4#
- 1...Sf5
- 2.Qxd1#
- 1...Seg8
- 2.Qxg6#
- threat
- 1.Bc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- R(e);N_GUARD::QAB1(D),XR(e)
- B(a);N_GUARD::QAB1(D)
- B(a);N_GUARD,P_PINP(C)::QAB1(D),XB(a)
- B(b);N_GUARD::S(G)
- B(b);N_GUARD::S(G),XB(b)
- S(g);N_GUARD::QAR2(D),XS(g)
- S(g);N_GUARD::QAR2(D)
- S(j);N_GUARD::QAR2(D),XP(h)
- S(j);SBLOCK::QAB(D),XB(a)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);N_GUARD::QAB1(D),XR(e)
- P(h);::QAR1(D)
- Refutation
- B(b);XS(E)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD::QAB1(D),XR(e)
- B(a);N_GUARD,P_PINP(C)::QAB1(D),XB(a)
- B(b);::QAB(D),XB(a)
- S(j);::QAB(D),XB(a)
- Refutation
- P(i);XS(G)
- Try
- B(F);
- Threat
- S(G)
- Vars
- R(e);N_GUARD::QAB1(D),XR(e)
- S(g);N_GUARD::QAR2(D)
- S(j);N_GUARD::QAR2(D),XP(h)
- Refutation
- S(j);
- Try
- B(F);
- Threat
- S(G)
- Vars
- S(g);N_GUARD::QAR2(D)
- S(j);SBLOCK::QAB(D),XB(a)
- S(j);N_GUARD::QAR2(D),XP(h)
- Refutation
- R(e);
- Try
- B(F);
- Threat
- S(G)
- Vars
- R(e);N_GUARD::QAB1(D),XR(e)
- S(j);SBLOCK::QAB(D),XB(a)
- S(j);N_GUARD::QAR2(D),XP(h)
- Refutation
- S(g);
- Try
- B(F);
- Threat
- S(G)
- Vars
- S(g);N_GUARD::QAR2(D)
- S(j);SBLOCK::QAB(D),XB(a)
- Refutation
- S(j);
- Try
- P(B);CHECK
- Vars
- B(a);OGATE,P_PINP(C),XP(B)::QAB1(D),XB(a)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- B(F);
- Threat
- S(G)
- Vars
- B(b);N_GUARD,XB(F)::S(G)
- R(e);N_GUARD::QAB1(D),XR(e)
- S(g);N_GUARD::QAR2(D)
- S(j);SBLOCK::QAB(D),XB(a)
- S(j);N_GUARD::QAR2(D),XP(h)
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