MESON Chess Problem Database
Problem Display
PID: 177793 (Q5q1/n1pN4/2p2BB1/K2p4/2kN1b2/R3p3/1npR4/2rr4 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Sahs (Latvia), 1985
#2
8 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxc2#
- 1...Rb1
- 2.Rxc2#
- 1...Sd3
- 2.Bxd3#
- 1...Sa4
- 2.Bd3#
- 1...Sb5
- 2.Qxc6#
- 1...Sc8
- 2.Qxc6#
- 2.Qa6#
- 1...Ra1
- Tries
- 1.Sxc2?
- threat
- 2.Rc3#
- 1...Rxc2
- 2.Rxc2#
- 1...d4
- 2.Qxg8#
- 1...Be5
- 2.Sxe3#
- 1...Sa4
- 2.Bd3#
- 1...Sb5
- 2.Qxc6#
- 1...Ra1!
- threat
- 1.Se2?
- threat
- 2.Rc3#
- 1...d4
- 2.Qxg8#
- 1...Ra1
- 2.Rxc2#
- 1...Sa4
- 2.Bd3#
- 1...Sb5
- 2.Qxc6#
- 1...Be5!
- threat
- 1.Sb5?
- threat
- 2.Rc3#
- 1...Sxb5
- 2.Qxc6#
- 1...d4
- 2.Qxg8#
- 1...Ra1
- 2.Rxc2#
- 1...Sa4
- 2.Bd3#
- 1...Be5!
- threat
- 1.Sf5?
- threat
- 2.Rc3#
- 1...d4
- 2.Qxg8#
- 1...Be5
- 2.Sxe3#
- 1...Ra1
- 2.Rxc2#
- 1...Sb5
- 2.Qxc6#
- 1...Sa4!
- threat
- 1.Sxc6?
- threat
- 2.Rc3#
- 1...Sxc6+
- 2.Qxc6#
- 1...d4
- 2.Qxg8#
- 1...Be5
- 2.Scxe5#
- 1...Ra1
- 2.Rxc2#
- 1...Sa4
- 2.Bd3#
- 1...Sb5!
- threat
- 1.Se6?
- threat
- 2.Rc3#
- 1...Be5
- 2.Sxe5#
- 1...Ra1
- 2.Rxc2#
- 1...Sa4
- 2.Bd3#
- 1...Sb5
- 2.Qxc6#
- 1...d4!
- threat
- 1.Se5+?
- 1...Kc5
- 2.Be7#
- 1...Bxe5!
- 1...Kc5
- 1.Qb7?
- threat
- 2.Qb3#
- 2.Qb4#
- 1...Qf8
- 2.Qb3#
- 1...Bd6
- 2.Qb3#
- 1...Sd3
- 2.Bxd3#
- 2.Qb3#
- 1...Sb5
- 2.Qxc6#
- 1...c5
- 2.Qb3#
- 1...Qb8!
- threat
- 1.Qxa7?
- threat
- 2.Qc5#
- 2.Qa6#
- 1...Qb8
- 2.Qc5#
- 1...Qc8
- 2.Qc5#
- 1...Qf8
- 2.Qa6#
- 1...Bd6
- 2.Qa6#
- 1...Sd3
- 2.Bxd3#
- 2.Qa6#
- 1...Sa4
- 2.Bd3#
- 2.Qa6#
- 1...c5
- 2.Qxc5#
- 2.Qa6#
- 1...Qa8!
- threat
- 1.Sxc2?
- Keys
- 1.Sf3!
- threat
- 2.Rc3#
- 1...d4
- 2.Qxg8#
- 1...Ra1
- 2.Rxc2#
- 1...Be5
- 2.Sfxe5#
- 1...Sa4
- 2.Bd3#
- 1...Sb5
- 2.Qxc6#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- R(a);N_GUARD::R(A),XP(d)
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- S(j);N_GUARD::QAR2(H),XP(i)
- Tries
- Try
- S(C);XP(d)
- Threat
- R1(B)
- Vars
- R(a);OGATE,XS(C)::R(A),XR(a)
- P(h);OGATEB::QAB(H),XQ(l)
- B(g);N_GUARD::S(C),XP(e)
- S(c);N_GUARD::B(F)
- S(j);N_GUARD::QAR2(H),XP(i)
- Refutation
- R(a);P_PINR(B)
- Try
- S(C);
- Threat
- R1(B)
- Vars
- P(h);OGATEB::QAB(H),XQ(l)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- S(c);N_GUARD::B(F)
- S(j);N_GUARD::QAR2(H),XP(i)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- R1(B)
- Vars
- S(j);N_GUARD,XS(C)::QAR2(H),XP(i)
- P(h);OGATEB::QAB(H),XQ(l)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- S(c);N_GUARD::B(F)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- R1(B)
- Vars
- P(h);OGATEB::QAB(H),XQ(l)
- B(g);N_GUARD::S(C),XP(e)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- S(j);N_GUARD::QAR2(H),XP(i)
- Refutation
- S(c);
- Try
- S(C);XP(i)
- Threat
- R1(B)
- Vars
- S(j);CHECK,OGATE,XS(C)::QAR2(H),XS(j)
- P(h);OGATEB::QAB(H),XQ(l)
- B(g);N_GUARD::S(C),XB(g)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- S(c);N_GUARD::B(F)
- Refutation
- S(j);
- Try
- S(C);
- Threat
- R1(B)
- Vars
- B(g);N_GUARD::S(G),XB(g)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- S(c);N_GUARD::B(F)
- S(j);N_GUARD::QAR2(H),XP(i)
- Refutation
- P(h);
- Try
- S(G);CHECK
- Vars
- K(f);P-FLIGHT::B(E)
- Refutation
- B(g);XS(G)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(l);::QAB1(H)
- B(g);::QAB1(H)
- S(j);N_GUARD::QAR2(H),XP(i)
- P(i);::QAB1(H)
- Refutation
- Q(l);
- Try
- Q(H);XS(j)
- Threat
- DUALS(2)
- Vars
- Q(l);::QAR1(H)
- Q(l);::QAB(H)
- B(g);::QAB(H)
- Refutation
- Q(l);P_PINQ(H)
- Try
- Actual
- S(C);
- Threat
- R1(B)
- Vars
- P(h);OGATEB::QAB(H),XQ(l)
- R(a);N_GUARD,P_PINR(B)::R(A),XP(d)
- B(g);N_GUARD::S(C),XB(g)
- S(c);N_GUARD::B(F)
- S(j);N_GUARD::QAR2(H),XP(i)
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