MESON Chess Problem Database
Problem Display
PID: 262851 (n5r1/5pp1/pR6/4Bk1N/r2p2Rb/1Np4K/2b2P2/4Q3 w - - 0 1)
Kozlov, Aleksandr Ivanovich
Shavirin, Valery Mikhailovich
Szachy, 1980
#2
8 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxd4#
- 1...Ra2
- 2.Sxd4#
- 1...Ra3
- 2.Sxd4#
- 1...Ra5
- 2.Sxd4#
- 1...Rb8
- 2.Sxg7#
- 1...Rc8
- 2.Sxg7#
- 1...Rd8
- 2.Sxg7#
- 1...Re8
- 2.Sxg7#
- 1...Rf8
- 2.Sxg7#
- 1...Rh8
- 2.Sxg7#
- 1...Bd1
- 2.Qe4#
- 1...Bxb3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bf6
- 2.Sg3#
- 1...Be7
- 2.Sg3#
- 1...Bd8
- 2.Sg3#
- 1...g5
- 2.Rf6#
- 1...Ra1
- Tries
- 1.Bg3?
- threat
- 2.Qe5#
- 1...Bxg3
- 2.Sxg3#
- 1...Ra5
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Be4
- 2.Qxe4#
- 1...f6
- 2.Qe6#
- 1...Bf6!
- threat
- 1.Bxd4?
- threat
- 2.Qe5#
- 1...Rxd4
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 1...Bf6
- 2.Sg3#
- 1...f6
- 2.Qe6#
- 1...Ra5!
- threat
- 1.Bf4?
- threat
- 2.Qe5#
- 1...Ra5
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Bf6
- 2.Sg3#
- 1...f6
- 2.Qe6#
- 1...Be4!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 1...Ra5
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 1...Bf6
- 2.Sg3#
- 1...f6
- 2.Qe6#
- 1...Sxc7!
- threat
- 1.Bxg7?
- threat
- 2.Qe5#
- 1...Rxg7
- 2.Sxg7#
- 1...Ra5
- 2.Sxd4#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 2.Rf6#
- 1...Bf6
- 2.Sg3#
- 2.Rxf6#
- 1...f6
- 2.Qe6#
- 1...Re8!
- threat
- 1.Bb8?
- threat
- 2.Qe5#
- 1...Rxb8
- 2.Sxg7#
- 1...Ra5
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 1...Bf6
- 2.Sg3#
- 1...f6
- 2.Qe6#
- 1...Sc7!
- threat
- 1.Rg5+?
- 1...Bxg5
- 2.Sg3#
- 1...Kxg5!
- 1...Bxg5
- 1.Bg3?
- Keys
- 1.Bh2!
- threat
- 2.Qe5#
- 1...Ra5
- 2.Sxd4#
- 1...Re8
- 2.Sxg7#
- 1...Be4
- 2.Qxe4#
- 1...Bg3
- 2.Sxg3#
- 1...Bf6
- 2.Sg3#
- 1...f6
- 2.Qe6#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD,XS(C)::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- P(i);N_GUARD,S_CUTB(e)::R1(H)
- Tries
- Try
- B(F);
- Threat
- QAR1(A)
- Vars
- B(e);XB(F)::S(G),XB(e)
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- P(h);N_GUARD::QAB1(A)
- Refutation
- B(e);
- Try
- B(F);XP(d)
- Threat
- QAR1(A)
- Vars
- R(c);XB(F)::S(C),XR(c)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- P(h);N_GUARD::QAB1(A)
- Refutation
- R(c);
- Try
- B(F);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(e);N_GUARD::S(G)
- P(h);N_GUARD::QAB1(A)
- Refutation
- B(a);
- Try
- B(F);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- P(h);N_GUARD::QAB1(A)
- Refutation
- S(j);XB(F)
- Try
- B(F);XP(i)
- Threat
- QAR1(A)
- Vars
- R(k);XB(F)::S(G),XR(k)
- R(c);N_GUARD::S(C),XP(d)
- B(a);N_GUARD::QAB1(A),XB(a)
- P(h);N_GUARD::QAB1(A)
- Refutation
- R(k);
- Try
- B(F);
- Threat
- QAR1(A)
- Vars
- R(k);N_GUARD,XB(F)::S(G),XP(i)
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- P(h);N_GUARD::QAB1(A)
- Refutation
- S(j);
- Try
- R(E);CHECK
- Vars
- B(e);SBLOCK,XR(E)::S(G)
- Refutation
- K(f);P-FLIGHT,XR(E)
- Try
- Actual
- B(F);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD::S(C),XP(d)
- R(k);N_GUARD::S(G),XP(i)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- P(h);N_GUARD::QAB1(A)
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