MESON Chess Problem Database
Problem Display
PID: 179675 (3KR3/p1R5/2NpNP2/2PkP3/3p4/1P1Q1P2/4rb2/n1r5 w - - 0 1)
Gorbatenko, Yuri Grigorevich
Kopnin, Aleksey Grigorevich
2nd HM., Lenin MT, 1980
#2
11 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qc4#
- 1...Rd1
- 2.Qc4#
- 1...Rce1
- 2.Qc4#
- 1...Rf1
- 2.Qc4#
- 1...Rg1
- 2.Qc4#
- 1...Rh1
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 2.bxc4#
- 1...Rxc5
- 2.Sf4#
- 1...Ra2
- 2.Qe4#
- 1...Rb2
- 2.Qe4#
- 1...Rc2
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Re3
- 2.Qxd4#
- 1...Re4
- 2.Qxe4#
- 2.fxe4#
- 1...Rxe5
- 2.Sb4#
- 1...Be1
- 2.Qxd4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Qxd4#
- 1...Bh4
- 2.Qxd4#
- 1...Sc2
- 2.Qc4#
- 1...dxc5
- 2.Sf4#
- 1...dxe5
- 2.Sb4#
- 1...Rb1
- Tries
- 1.Sa5?
- threat
- 2.Sf4#
- 1...dxe5
- 2.Rd7#
- 1...Re4
- 2.Qxe4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Qxd4#
- 1...Kxe5!
- threat
- 1.Sxa7?
- threat
- 2.Sf4#
- 1...dxe5
- 2.Rd7#
- 1...Re4
- 2.Qxe4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Qxd4#
- 1...Kxe5!
- threat
- 1.Se7+?
- 1...Kxe5
- 2.Qf5#
- 1...Kxe6!
- 1...Kxe5
- 1.Sb8?
- threat
- 2.Sf4#
- 1...dxe5
- 2.Rd7#
- 1...Re4
- 2.Qxe4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Qxd4#
- 1...Kxe5!
- threat
- 1.Sexd4?
- threat
- 2.Sb4#
- 1...Kxc5
- 2.Qb5#
- 1...dxc5
- 2.Rd7#
- 1...Rc4
- 2.Qxc4#
- 1...Be1
- 2.Se6#
- 1...Sc2
- 2.Qc4#
- 1...a5!
- threat
- 1.Qxe2?
- threat
- 2.Sb4#
- 2.Qe4#
- 1...Sxb3
- 2.Sb4#
- 1...dxc5
- 2.Sf4#
- 2.Qe4#
- 1...Re1
- 2.Sb4#
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 2.Qe4#
- 2.bxc4#
- 1...Be1
- 2.Qe4#
- 1...Sc2
- 2.Qc4#
- 2.Qe4#
- 1...a5
- 2.Qe4#
- 1...Be3!
- threat
- 1.Qf5?
- threat
- 2.Sb4#
- 2.Se7#
- 1...dxc5
- 2.Se7#
- 2.Sf4#
- 1...Rc4
- 2.Se7#
- 1...Be1
- 2.Se7#
- 1...Sc2
- 2.Se7#
- 1...a5
- 2.Se7#
- 1...Sxb3!
- threat
- 1.Sa5?
- Keys
- 1.Scxd4!
- threat
- 2.Sf4#
- 1...Kxe5
- 2.Qf5#
- 1...dxe5
- 2.Rd7#
- 1...Re4
- 2.Qxe4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Sc6#
- threat
- 1.Scxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 17
- Sets
- R(b);N_GUARD::QAB1(B)
- R(b);SBLOCK,XP(D)::S(G)
- R(c);N_GUARD::QAB1(B)
- R(c);S_CUTB(d)::QAR1(B),XP(e)
- R(c);SBLOCK,XP(E)::S(F)
- B(d);N_GUARD::QAR1(B),XP(e)
- B(d);S_CUTR(c)::QAB1(B)
- B(d);N_GUARD,P_PINP(H)::QAR1(B),XP(e)
- S(a);S_CUTR(b)::QAB1(B)
- P(g);SBLOCK,XP(D)::S(G)
- P(g);SBLOCK,XP(E)::S(F)
- Tries
- Try
- S(F);
- Threat
- S(G)
- Vars
- P(g);OGATEB,SBLOCK,XP(E)::R(I)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(d);S_CUTR(c)::QAB1(B)
- B(d);N_GUARD::QAR1(B),XP(e)
- Refutation
- K(f);N_SPINP(e),P-FLIGHT,XP(E)
- Try
- S(F);XP(h)
- Threat
- S(G)
- Vars
- P(g);OGATEB,SBLOCK,XP(E)::R(I)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(d);S_CUTR(c)::QAB1(B)
- B(d);N_GUARD::QAR1(B),XP(e)
- Refutation
- K(f);N_SPINP(e),P-FLIGHT,XP(E)
- Try
- S(F);CHECK
- Vars
- K(f);N_SPINP(e),P-FLIGHT,XP(E)::QAR1(B)
- Refutation
- K(f);N_SPINP(e),S_FLIGHT,XS(G)
- Try
- S(F);
- Threat
- S(G)
- Vars
- P(g);OGATEB,SBLOCK,XP(E)::R(I)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(d);S_CUTR(c)::QAB1(B)
- B(d);N_GUARD::QAR1(B),XP(e)
- Refutation
- K(f);N_SPINP(e),P-FLIGHT,XP(E)
- Try
- S(G);XP(e)
- Threat
- S(F)
- Vars
- K(f);OGATEB,P-FLIGHT,XP(D)::QAR1(B)
- P(g);OGATEB,SBLOCK,XP(D)::R(I)
- R(b);N_GUARD::QAB1(B),XR(b)
- B(d);N_GUARD::QAR(B)+S(G)
- S(a);S_CUTR(b)::QAB1(B)
- Refutation
- P(h);
- Try
- Q(B);N_PINP(e),XR(c)
- Threat
- DUALS(2)
- Vars
- S(a);XP(A)::S(F)
- B(d);::QAB1(B)
- P(h);::QAB1(B)
- Refutation
- B(d);
- Try
- Q(B);N_PINP(e)
- Threat
- DUALS(2)
- Vars
- R(b);::S(F)
- B(d);::S(F)
- S(a);::S(F)
- P(h);::S(F)
- Refutation
- S(a);XP(A)
- Try
- Actual
- S(F);XP(e)
- Threat
- S(G)
- Vars
- K(f);OGATEB,P-FLIGHT,XP(E)::QAR1(B)
- P(g);OGATEB,SBLOCK,XP(E)::R(I)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(d);S_CUTR(c)::QAB1(B)
- B(d);N_GUARD::QAR(B)+S(F)
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