MESON Chess Problem Database
Problem Display
PID: 245382 (5n1r/5Qb1/K1N4P/p3rB1R/3n1k1P/2NPp2R/4p3/4B3 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Revista Romana de Sah, 1984
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Sd5#
- 1...Rd5
- 2.Sxd5#
- 1...Re6
- 2.Sd5#
- 1...Re7
- 2.Sd5#
- 1...Re8
- 2.Sd5#
- 1...Sc2
- 2.Sxe2#
- 1...Sb3
- 2.Sxe2#
- 1...Sf3
- 2.Sxe2#
- 2.Bg3#
- 1...Sb5
- 2.Sxe2#
- 1...Sxc6
- 2.Sxe2#
- 1...Sde6
- 2.Sxe2#
- 1...Re4
- Tries
- 1.Sxe5?
- threat
- 2.Bg3#
- 1...Kxe5
- 2.Bg3#
- 1...Bxe5
- 2.Sd5#
- 1...Rxh6+!
- threat
- 1.Rf3+?
- 1...Sxf3
- 2.Sxe2#
- 1...Kxf3!
- 1...Sxf3
- 1.Rg5?
- threat
- 2.Rg4#
- 1...Rxf5
- 2.Sd5#
- 1...Sxf5
- 2.Sxe2#
- 1...Bf6!
- threat
- 1.Qc4?
- threat
- 2.Sxe2#
- 1...Re4
- 2.Sd5#
- 1...Rxf5!
- threat
- 1.Qg6?
- threat
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rxf5
- 2.Qg3#
- 1...Bxh6
- 2.Qg3#
- 2.Qg4#
- 1...Sxf5
- 2.Sxe2#
- 2.Qg5#
- 1...Bf6
- 2.Qg3#
- 2.Qg4#
- 1...Sf3
- 2.Sxe2#
- 2.Bg3#
- 2.Qg3#
- 2.Qg4#
- 1...Sde6
- 2.Sxe2#
- 2.Qg3#
- 2.Qg4#
- 1...Sfe6
- 2.Qg3#
- 2.Qg4#
- 1...Sh7
- 2.Qg3#
- 2.Qg4#
- 1...Sxg6!
- threat
- 1.Qxg7?
- threat
- 2.Qxe5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rxf5
- 2.Qxd4#
- 2.Qg3#
- 1...Sxf5
- 2.Sxe2#
- 2.Qg5#
- 1...Sxc6
- 2.Sxe2#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Re4
- 2.Sd5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rb5
- 2.Qxd4#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rc5
- 2.Qxd4#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rd5
- 2.Sxd5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Re6
- 2.Sd5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Re7
- 2.Sd5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Re8
- 2.Sd5#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rg8
- 2.Qxe5#
- 1...Sf3
- 2.Sxe2#
- 2.Bg3#
- 2.Qg3#
- 2.Qg4#
- 1...Sde6
- 2.Sxe2#
- 2.Qxe5#
- 2.Qg3#
- 2.Qg4#
- 1...Sfe6
- 2.Qxe5#
- 2.Qg3#
- 2.Qg4#
- 1...Sd7
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Sh7
- 2.Qxe5#
- 2.Qg3#
- 2.Qg4#
- 1...Sg6!
- threat
- 1.Sxe5?
- Keys
- 1.Qd5!
- threat
- 2.Bg3#
- 1...Rxd5
- 2.Sxd5#
- 1...Rxf5
- 2.Qe4#
- 1...Sxf5
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- threat
- 1.Qd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(f);N_GUARD::S(B)
- R(f);N_GUARD::S(B),XR(f)
- R(f);N_GUARD,P_PINS(I)::S(B)
- S(c);N_GUARD::S(B),XP(a)
- S(c);N_GUARD,XS(I)::S(B),XP(a)
- Tries
- Try
- S(I);XR(f)
- Threat
- B(A)
- Vars
- K(d);S_FLIGHT,XS(I)::B(A)
- B(g);SBLOCK,XS(I)::S(B)
- Refutation
- R(i);CHECK,XP(J)
- Try
- R(D);CHECK
- Vars
- S(c);SBLOCK,XR(D)::S(B),XP(a)
- Refutation
- K(d);P-FLIGHT,XR(D)
- Try
- R(G);
- Threat
- R1(G)
- Vars
- R(f);N_GUARD,P_SPINR(f),XB(F)::S(B)
- S(c);N_GUARD,P_SPINS(c),XB(F)::S(B),XP(a)
- Refutation
- B(g);
- Try
- Q(K);P_PINS(c)
- Threat
- S(B),XP(a)
- Vars
- R(f);N_GUARD,N_SPINS(c)::S(B)
- Refutation
- R(f);XB(F)
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- R(f);XB(F)::QAB1(K)
- Refutation
- S(h);XQ(K)
- Try
- Q(K);XB(g)
- Threat
- DUALS(4)
- Vars
- R(i);::QAB1(K),XR(f)
- Refutation
- S(h);
- Try
- Actual
- Q(K);
- Threat
- B(A)
- Vars
- R(f);XQ(K)::S(B),XR(f)
- R(f);N_GUARD,XB(F)::QAR1(K)
- S(c);N_GUARD,XB(F)::QAR1(K)
- R(f);N_GUARD::QAR1(K),XR(f)
Developed and maintained by Brian Stephenson.
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