MESON Chess Problem Database
Problem Display
PID: 151153 (3n4/1Q2N3/1pP1P3/8/rR1PkPRr/p2pP3/2N1Pp2/KBB5 w - - 0 1)
Alaikov, Venelin
Match: Bulgaria - East Germany, 1983-1984
#2
14 + 8
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.d5#
- 1...Ra6
- 2.d5#
- 1...Ra7
- 2.d5#
- 1...Ra8
- 2.d5#
- 1...Rh1
- 2.f5#
- 1...Rh2
- 2.f5#
- 1...Rh3
- 2.f5#
- 1...Rh5
- 2.f5#
- 1...Rh6
- 2.f5#
- 1...Rh7
- 2.f5#
- 1...Rh8
- 2.f5#
- 1...Sxc6
- 2.Qxc6#
- 1...Sxe6
- 2.c7#
- 1...Sf7
- 2.c7#
- 1...dxc2
- 2.Bxc2#
- 1...dxe2
- 2.Se1#
- 1...Ra5
- Tries
- 1.Se1?
- threat
- 2.Bxd3#
- 2.exd3#
- 1...fxe1Q
- 2.Bxd3#
- 1...fxe1B
- 2.Bxd3#
- 1...fxe1R
- 2.Bxd3#
- 1...f1Q
- 2.Bxd3#
- 1...f1B
- 2.Bxd3#
- 1...fxe1S!
- threat
- 1.Ba2?
- threat
- 2.Bd5#
- 1...Ra5
- 2.d5#
- 1...Rh5
- 2.f5#
- 1...dxe2!
- threat
- 1.Rxa4?
- threat
- 2.d5#
- 1...Sxc6
- 2.Qxc6#
- 1...Sxe6
- 2.c7#
- 1...dxe2
- 2.Se1#
- 1...b5!
- threat
- 1.Rb5?
- threat
- 2.Re5#
- 1...dxe2
- 2.Se1#
- 1...Rh5
- 2.f5#
- 1...Sf7
- 2.c7#
- 1...Ra5!
- threat
- 1.Rg5?
- threat
- 2.Re5#
- 1...dxe2
- 2.Se1#
- 1...Ra5
- 2.d5#
- 1...Sf7
- 2.c7#
- 1...Rh5!
- threat
- 1.Qa6?
- threat
- 2.Qxd3#
- 1...Rxa6
- 2.d5#
- 1...dxc2
- 2.Bxc2#
- 2.Qd3#
- 1...dxe2
- 2.Se1#
- 1...d2
- 2.Qd3#
- 1...b5!
- threat
- 1.Qc7?
- threat
- 2.Qe5#
- 1...Sxc6
- 2.Qxc6#
- 1...dxe2
- 2.Se1#
- 1...Ra5
- 2.d5#
- 1...Rh5
- 2.f5#
- 1...Sf7!
- threat
- 1.c7+?
- 1...Sc6
- 2.Qxc6#
- 1...Sxb7!
- 1...Sc6
- 1.Se1?
- Keys
- 1.Qd7!
- threat
- 2.Qd5#
- 1...dxe2
- 2.Se1#
- 1...Ra5
- 2.d5#
- 1...Rh5
- 2.f5#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- R(d);N_GUARD::R(G)+P(H)
- R(f);N_GUARD::R(J)+P(I)
- S(h);OGATE,P_SPINS(h),XP(K)::QAB(M),XS(h)
- S(h);N_GUARD,XP(L)::QAB(M)+P(K)
- S(h);N_GUARD::QAB(M)+P(K)
- P(c);OGATE,P_SPINP(c),XS(D)::B(B),XP(c)
- P(c);XP(E)::B(B)+S(D)
- Tries
- Try
- S(D);P_PINP(c)
- Threat
- DUALS(2)
- Vars
- P(a);XS(D)::B(B),XP(c)
- P(a);::B(B),XP(c)
- Refutation
- P(a);XS(D)
- Try
- B(B);
- Threat
- B(B)
- Vars
- R(d);N_GUARD::R(G)+P(H)
- R(f);N_GUARD::R(J)+P(I)
- Refutation
- P(c);XP(E)
- Try
- R(G);XR(d)
- Threat
- R(G)+P(H)
- Vars
- S(h);OGATE,P_SPINS(h),XP(K)::QAB(M),XS(h)
- S(h);N_GUARD,XP(L)::QAB(M)+P(K)
- P(c);XP(E)::B(B)+S(D)
- Refutation
- P(g);
- Try
- R(G);
- Threat
- R1(G)
- Vars
- P(c);XP(E)::B(B)+S(D)
- R(f);N_GUARD::R(J)+P(I)
- S(h);N_GUARD::QAB(M)+P(K)
- Refutation
- R(d);
- Try
- R(J);
- Threat
- R1(J)
- Vars
- P(c);XP(E)::B(B)+S(D)
- R(d);N_GUARD::R(G)+P(H)
- S(h);N_GUARD::QAB(M)+P(K)
- Refutation
- R(f);
- Try
- Q(M);
- Threat
- QAB1(M),XP(c)
- Vars
- R(d);N_GUARD,XQ(M)::R(G)+P(H)
- P(c);XP(E)::B(B)+S(D)
- P(c);::QAB1(M)
- Refutation
- P(g);
- Try
- Q(M);
- Threat
- QAR1(M)
- Vars
- S(h);OGATE,XP(K)::QAB(M),XS(h)
- P(c);XP(E)::B(B)+S(D)
- R(d);N_GUARD::R(G)+P(H)
- R(f);N_GUARD::R(J)+P(I)
- Refutation
- S(h);
- Try
- P(K);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAB(M),XS(h)
- Refutation
- S(h);XQ(M)
- Try
- Actual
- Q(M);
- Threat
- QAB1(M)
- Vars
- P(c);XP(E)::B(B)+S(D)
- R(d);N_GUARD::R(G)+P(H)
- R(f);N_GUARD::R(J)+P(I)
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