MESON Chess Problem Database
Problem Display
PID: 185117 (8/Qn5B/2pp4/2rN4/RK1k4/ppNPR3/1r5B/q7 w - - 0 1)
Kopaev, Viacheslav Georgievich
2nd Prize, Suomen Shakki, 1981
#2
9 + 9
| 117 | Suomen Shakki | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Kxa3#
- 1...Qc1
- 2.Kxa3#
- 1...Qd1
- 2.Kxa3#
- 1...Qe1
- 2.Kxa3#
- 1...Qf1
- 2.Kxa3#
- 1...Qg1
- 2.Kxa3#
- 1...Qh1
- 2.Kxa3#
- 1...Ra2
- 2.Kxb3#
- 1...Rc2
- 2.Kxb3#
- 1...Rd2
- 2.Kxb3#
- 1...Re2
- 2.Kxb3#
- 1...Rf2
- 2.Kxb3#
- 1...Rg2
- 2.Kxb3#
- 1...Rxh2
- 2.Kxb3#
- 1...Sa5
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...a2
- 2.Ka3#
- 1...Qb1
- Tries
- 1.Se2+?
- 1...Kxd5
- 2.Bg8#
- 1...Rxe2!
- 1...Kxd5
- 1.Sb5+?
- 1...Kxd5
- 2.Bg8#
- 1...cxb5!
- 1...Kxd5
- 1.Bxd6?
- threat
- 2.Be5#
- 1...Sxd6
- 2.Qxc5#
- 2.Qg7#
- 1...cxd5!
- threat
- 1.Re1?
- 1...Qxe1
- 2.Kxa3#
- 1...Rxh2
- 2.Kxb3#
- 1...cxd5
- 2.Sb5#
- 1...Qb1
- 2.Kxa3#
- 1...Qc1
- 2.Kxa3#
- 1...Qd1
- 2.Kxa3#
- 1...Rb1
- 2.Bg1#
- 1...Ra2
- 2.Kxb3#
- 1...Rc2
- 2.Kxb3#
- 1...Rd2
- 2.Kxb3#
- 1...Re2
- 2.Kxb3#
- 1...Rf2
- 2.Kxb3#
- 1...Rg2
- 2.Kxb3#
- 1...Sa5
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...a2
- 2.Ka3#
- 1...Qa2!
- 1...Qxe1
- 1.Re2?
- 1...Rxe2
- 2.Kxb3#
- 1...cxd5
- 2.Sb5#
- 1...Qa2
- 2.Bg1#
- 1...Qb1
- 2.Kxa3#
- 1...Qc1
- 2.Kxa3#
- 1...Qd1
- 2.Kxa3#
- 1...Qe1
- 2.Kxa3#
- 1...Qf1
- 2.Kxa3#
- 1...Qg1
- 2.Kxa3#
- 2.Bxg1#
- 1...Qh1
- 2.Kxa3#
- 1...Ra2
- 2.Kxb3#
- 1...Rc2
- 2.Kxb3#
- 1...Rd2
- 2.Kxb3#
- 1...Sa5
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...a2
- 2.Ka3#
- 1...Rb1!
- 1...Rxe2
- 1.Rh3?
- threat
- 2.Rh4#
- 1...cxd5
- 2.Sb5#
- 1...Qc1
- 2.Kxa3#
- 1...Qd1
- 2.Kxa3#
- 1...Qe1
- 2.Kxa3#
- 1...Qf1
- 2.Kxa3#
- 1...Qg1
- 2.Kxa3#
- 1...Qh1
- 2.Kxa3#
- 1...Re2
- 2.Kxb3#
- 1...Rf2
- 2.Kxb3#
- 1...Rg2
- 2.Kxb3#
- 1...Rxh2!
- threat
- 1.Se2+?
- Keys
- 1.Bg1!
- 1...Qxg1
- 2.Kxa3#
- 1...cxd5
- 2.Sb5#
- 1...Qb1
- 2.Kxa3#
- 1...Qc1
- 2.Kxa3#
- 1...Qd1
- 2.Kxa3#
- 1...Qe1
- 2.Kxa3#
- 1...Qf1
- 2.Kxa3#
- 1...Qa2
- 2.Re2#
- 1...Rb1
- 2.Re1#
- 1...Ra2
- 2.Kxb3#
- 1...Rc2
- 2.Kxb3#
- 1...Rd2
- 2.Kxb3#
- 1...Re2
- 2.Kxb3#
- 1...Rf2
- 2.Kxb3#
- 1...Rg2
- 2.Kxb3#
- 1...Rh2
- 2.Kxb3#
- 1...Sa5
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...a2
- 2.Ka3#
- 1...Qxg1
- 1.Bg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(a);::R(E)+K(F),XP(c)
- Q(a);P_PINS(B)::R(E)+K(F),XP(c)
- R(b);::R(E)+K(F),XP(d)
- R(b);XB(A)::R(E)+K(F),XP(d)
- S(i);OGATE::QAB(H)
- P(c);::R(E)+K(F)
- Tries
- Try
- S(B);CHECK
- Vars
- K(e);N_SPINR(f),P-FLIGHT,XS(G)::B(I)
- Refutation
- R(b);XS(B)
- Try
- S(B);CHECK
- Vars
- K(e);N_SPINR(f),P-FLIGHT,XS(G)::B(I)
- Refutation
- P(g);XS(B)
- Try
- B(A);XP(h)
- Threat
- B(A)
- Refutation
- P(g);XS(G)
- Try
- R(D);
- Vars
- Q(a);P_PINS(B),XR(D)::R(E)+K(F),XP(c)
- R(b);XB(A)::R(E)+K(F),XP(d)
- P(g);N_GUARD,SBLOCK,XS(G)::S(B)
- Q(a);::R(E)+K(F),XP(c)
- R(b);N_GUARD::B(A)
- R(b);::R(E)+K(F),XP(d)
- S(i);OGATE::QAB(H)
- P(c);::R(E)+K(F)
- Refutation
- Q(a);
- Try
- R(D);
- Vars
- R(b);XR(D)::R(E)+K(F),XP(d)
- P(g);N_GUARD,SBLOCK,XS(G)::S(B)
- Q(a);N_GUARD::B(A)
- Q(a);::R(E)+K(F),XP(c)
- Q(a);P_PINS(B)::R(E)+K(F),XP(c)
- R(b);::R(E)+K(F),XP(d)
- S(i);OGATE::QAB(H)
- P(c);::R(E)+K(F)
- Refutation
- R(b);
- Try
- R(D);
- Threat
- R(D)
- Vars
- P(g);N_GUARD,SBLOCK,XS(G)::S(B)
- Q(a);::R(E)+K(F),XP(c)
- Q(a);P_PINS(B)::R(E)+K(F),XP(c)
- R(b);::R(E)+K(F),XP(d)
- Refutation
- R(b);XB(A)
- Try
- Actual
- B(A);
- Vars
- Q(a);XB(A)::R(E)+K(F),XP(c)
- P(g);N_GUARD,SBLOCK,XS(G)::S(B)
- Q(a);::R(E)+K(F),XP(c)
- Q(a);P_PINS(B)::R(E)+K(F),XP(c)
- Q(a);N_GUARD::B(A)+R(D)
- R(b);N_GUARD::B(A)+R(D)
- R(b);::R(E)+K(F),XP(d)
- S(i);OGATE::QAB(H)
- P(c);::R(E)+K(F)
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