MESON Chess Problem Database
Problem Display
PID: 179594 (KnR4r/3pR3/N2p1p2/1B1k4/3pn3/4r3/3b1N2/B4bQ1 w - - 0 1)
Archakov, Viktor
International Ty., 1971
#2
8 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.Bc4#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Bc4#
- 1...Rh1
- 2.Qg8#
- 1...Rh2
- 2.Qg8#
- 1...Rh3
- 2.Qg8#
- 1...Rh4
- 2.Qg8#
- 1...Rh5
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Bg2
- 2.Bc4#
- 1...Bh3
- 2.Bc4#
- 1...Bc4
- 2.Bxc4#
- 1...Bc1
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Sc3
- 2.Sb4#
- 1...Sc5
- 2.Sc7#
- 1...d3
- 2.Bc4#
- 1...Re2
- Tries
- 1.Sd3?
- threat
- 2.Sf4#
- 2.Sc7#
- 2.Bc4#
- 1...Rxd3
- 2.Bc4#
- 1...Rxc8
- 2.Sf4#
- 1...Sxa6
- 2.Sf4#
- 2.Bc4#
- 1...Re1
- 2.Sc7#
- 2.Bc4#
- 2.Qxd4#
- 1...Re2
- 2.Sc7#
- 2.Bc4#
- 2.Qxd4#
- 1...Rf3
- 2.Sc7#
- 2.Bc4#
- 2.Qxd4#
- 1...Rg3
- 2.Sc7#
- 2.Bc4#
- 2.Qxd4#
- 1...Reh3
- 2.Sc7#
- 2.Bc4#
- 2.Qxd4#
- 1...Rh4
- 2.Sc7#
- 2.Bc4#
- 2.Qg8#
- 1...Ba5
- 2.Sf4#
- 2.Bc4#
- 1...Sc5
- 2.Sf4#
- 2.Sc7#
- 1...Sc6
- 2.Sf4#
- 2.Sc7#
- 1...Bxd3!
- threat
- 1.Sxe4?
- threat
- 2.Sxf6#
- 2.Sc7#
- 1...Rxc8
- 2.Sxf6#
- 1...Bxb5
- 2.Sxf6#
- 1...Sxa6
- 2.Sxf6#
- 1...Ra3
- 2.Sxf6#
- 2.Qxd4#
- 1...Rc3
- 2.Sxf6#
- 2.Sb4#
- 1...Rf3
- 2.Sc7#
- 2.Qxd4#
- 1...Rh6
- 2.Sc7#
- 2.Qg8#
- 1...Rf8
- 2.Sc7#
- 1...Ba5
- 2.Sxf6#
- 1...f5
- 2.Sf6#
- 2.Sc7#
- 1...Rxe4!
- threat
- 1.Rc5+?
- 1...Sxc5
- 2.Sc7#
- 1...dxc5!
- 1...Sxc5
- 1.Qxf1?
- threat
- 2.Bc4#
- 2.Qc4#
- 1...Re2
- 2.Bc4#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Bc4#
- 1...d3
- 2.Bc4#
- 1...Rxc8!
- threat
- 1.Qg4?
- threat
- 2.Qf5#
- 1...Sxf2
- 2.Qxd4#
- 1...Rf3
- 2.Qxe4#
- 1...Rh5
- 2.Qg8#
- 1...Bh3
- 2.Bc4#
- 1...Sc3
- 2.Sb4#
- 1...Sg3
- 2.Qxd4#
- 1...Sc5
- 2.Sc7#
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...f5
- 2.Qxf5#
- 1...Sc6!
- threat
- 1.Sd3?
- Keys
- 1.Sh3!
- threat
- 2.Sf4#
- 1...Rexh3
- 2.Qxd4#
- 1...Rhxh3
- 2.Qg8#
- 1...Bxh3
- 2.Bc4#
- 1...Re1
- 2.Qxd4#
- 1...Re2
- 2.Bc4#
- 2.Qxd4#
- 1...Ra3
- 2.Qxd4#
- 1...Rb3
- 2.Qxd4#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Bc4#
- 1...Rf3
- 2.Qxd4#
- 1...Rg3
- 2.Qxd4#
- 1...Rh4
- 2.Qg8#
- threat
- 1.Sh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 13
- Sets
- R(c);S_CUTB(a)::B(D)
- R(c);S_CUTB(b)::S(E)
- R(k);N_GUARD::QAB(B)
- R(k);N_GUARD::QAB(B),XR(k)
- B(a);N_GUARD::B(D)
- B(a);N_GUARD::B(D),XB(a)
- B(b);N_GUARD::S(E)
- B(b);N_GUARD::S(E),XB(b)
- S(e);S_CUTB(b)::S(E)
- S(e);SBLOCK::S(E)
- P(d);S_CUTB(a)::B(D)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- R(c);XS(C)::B(D)
- R(k);XR(H)::S(C)
- Refutation
- B(a);XS(C)
- Try
- S(C);XS(e)
- Threat
- DUALS(2)
- Vars
- R(k);XR(H)::S(C),XP(h)
- B(a);XB(D)::S(C),XP(h)
- S(j);P_PINR(H),XS(E)::S(C),XP(h)
- R(k);::S(E)
- B(b);::S(C),XP(h)
- Refutation
- R(c);XS(C)
- Try
- R(H);CHECK
- Vars
- S(e);SBLOCK,XR(H)::S(E)
- Refutation
- P(g);XR(H)
- Try
- Q(B);XB(a)
- Threat
- DUALS(2)
- Vars
- R(c);::B(D)
- R(c);S_CUTB(b)::S(E)
- P(d);::B(D)
- Refutation
- R(k);XR(H)
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- S(e);OGATE,XS(C)::QAR1(B),XP(d)
- R(c);N_GUARD::QAB1(B),XS(e)
- R(k);N_GUARD::QAB(B)
- B(a);N_GUARD::B(D)
- S(e);S_CUTB(b)::S(E)
- S(e);OGATE::QAR1(B),XP(d)
- P(h);::QAR2(B),XP(h)
- Refutation
- S(j);P_PINR(H)
- Try
- Actual
- S(C);
- Threat
- S(C)
- Vars
- R(c);OGATE,XS(C)::QAR1(B),XP(d)
- R(k);N_GUARD,XS(C)::QAB(B)
- B(a);N_GUARD,XS(C)::B(D)
- R(c);OGATE::QAR1(B),XP(d)
- R(c);OGATE,P_PINS(E)::QAR1(B),XP(d)
- R(c);S_CUTB(b)::S(E)
- R(c);S_CUTB(a)::B(D)
- R(k);N_GUARD::QAB(B)
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