MESON Chess Problem Database
Problem Display
PID: 255619 (8/3rQ1p1/1N2n3/2n5/q3BR2/2PpkpB1/2P5/3R1K2 w - - 0 1)
Slesarenko, Anatoly Vasilevich
6th Prize, Astafyeva-30 JT (Kudesnik), 2021
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.Sc4#
- 1...Qc6
- 2.Sc4#
- 1...Qa1
- 2.Sc4#
- 1...Qa3
- 2.Sc4#
- 1...Qc4
- 2.Sxc4#
- 1...Qa5
- 2.Sc4#
- 1...Qa7
- 2.Sc4#
- 1...Qa8
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Ra7
- 2.Sd5#
- 1...Rb7
- 2.Sd5#
- 1...Rc7
- 2.Sd5#
- 1...Rxe7
- 2.Sd5#
- 1...Sxf4
- 2.Bf2#
- 1...Sc7
- 2.Rxf3#
- 1...Sd8
- 2.Rxf3#
- 1...Sf8
- 2.Rxf3#
- 1...Qxc2
- Tries
- 1.Bd5?
- threat
- 2.Rxf3#
- 1...Qxf4
- 2.Bf2#
- 1...Rxd5
- 2.Sxd5#
- 1...Se4
- 2.Rxd3#
- 1...f2
- 2.Rf3#
- 1...Qe4!
- threat
- 1.Rg4?
- threat
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 1...f2
- 2.Bxf2#
- 1...Sxe4!
- threat
- 1.Rh4?
- threat
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 1...f2
- 2.Bxf2#
- 1...Sxe4!
- threat
- 1.Qh4?
- threat
- 2.Bf2#
- 2.Rxf3#
- 1...Qxc2
- 2.Sc4#
- 2.Rxf3#
- 1...Qxe4
- 2.Bf2#
- 1...Sxf4
- 2.Qxf4#
- 1...Rf7
- 2.Sd5#
- 2.Bf2#
- 1...Sd4
- 2.Bf2#
- 1...Sg5
- 2.Bf2#
- 1...f2
- 2.Bxf2#
- 2.Rf3#
- 1...Sxe4!
- threat
- 1.Qxc5+?
- 1...Qd4
- 2.Sc4#
- 2.Rxd3#
- 1...Rd4
- 2.Sd5#
- 2.Rxd3#
- 1...Sd4
- 2.Rxd3#
- 1...Sxc5!
- 1...Qd4
- 1.Qd6?
- threat
- 2.Sd5#
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 2.Sd5#
- 1...Qxe4
- 2.Bf2#
- 1...Sxe4
- 2.Sd5#
- 2.Rxd3#
- 1...Sxf4
- 2.Qxf4#
- 1...Qb3
- 2.Bf2#
- 1...Qc6
- 2.Sc4#
- 2.Bf2#
- 1...Qa2
- 2.Bf2#
- 1...Qc4
- 2.Sxc4#
- 2.Bf2#
- 1...Qd4
- 2.Bf2#
- 1...Qa8
- 2.Sc4#
- 2.Bf2#
- 1...Sc7
- 2.Bf2#
- 1...f2
- 2.Sd5#
- 2.Bxf2#
- 1...Rxd6!
- threat
- 1.Qf6?
- threat
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 1...Sxe4
- 2.Rxf3#
- 1...Sxf4
- 2.Qxf4#
- 1...f2
- 2.Bxf2#
- 1...gxf6!
- threat
- 1.Qf8?
- threat
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 1...Sxe4
- 2.Rxf3#
- 1...Sxf4
- 2.Qxf4#
- 1...Rf7
- 2.Sd5#
- 1...f2
- 2.Bxf2#
- 1...Sxf8!
- threat
- 1.Bd5?
- Keys
- 1.Qf7!
- threat
- 2.Bf2#
- 1...Qxc2
- 2.Sc4#
- 1...Rxf7
- 2.Sd5#
- 1...Sxe4
- 2.Rxf3#
- 1...Sxf4
- 2.Qxf4#
- 1...f2
- 2.Bxf2#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(d);N_GUARD,XP(C)::S(H)
- Q(d);N_GUARD::S(H)
- Q(d);N_GUARD,P_PINR(A)::S(H)
- Q(d);N_GUARD::S(H),XQ(d)
- R(g);N_GUARD::S(H),XR(g)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD,XQ(I)::S(H)
- S(f);SBLOCK,XR(G)::B(E)
- S(f);::R1(G),XP(c)
- Tries
- Try
- B(F);P_PINS(f)
- Threat
- R1(G),XP(c)
- Vars
- Q(d);SBLOCK,XR(G)::B(E)
- R(g);XB(F)::S(H),XR(g)
- S(e);N_GUARD,N_SPINS(f)::R1(A),XP(a)
- P(c);::R1(G)
- Refutation
- Q(d);N_SPINS(f)
- Try
- R(G);
- Threat
- B(E)
- Vars
- Q(d);N_GUARD,XP(C)::S(H)
- P(c);::B(E),XP(c)
- Refutation
- S(e);XB(F)
- Try
- R(G);
- Threat
- B(E)
- Vars
- Q(d);N_GUARD,XP(C)::S(H)
- P(c);::B(E),XP(c)
- Refutation
- S(e);XB(F)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(F)::B(E)
- S(f);OGATE,XR(G)::QAB1(I),XS(f)
- S(f);::B(E)
- Refutation
- S(e);XB(F)
- Try
- Q(I);CHECK,XS(e)
- Vars
- S(f);P_SPINS(f)::R1(A),XP(a)
- Refutation
- S(f);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(F)::B(E)
- S(f);OGATE,XR(G)::QAB1(I),XS(f)
- Q(d);::B(E)
- S(f);::B(E)
- Refutation
- R(g);XQ(I)
- Try
- Q(I);
- Threat
- B(E)
- Vars
- Q(d);N_GUARD,XP(C)::S(H)
- S(e);SBLOCK,XB(F)::R1(G),XP(c)
- S(f);OGATE,XR(G)::QAB1(I),XS(f)
- P(c);::B(E),XP(c)
- Refutation
- P(h);XQ(I)
- Try
- Q(I);
- Threat
- B(E)
- Vars
- Q(d);N_GUARD,XP(C)::S(H)
- S(e);SBLOCK,XB(F)::R1(G),XP(c)
- S(f);OGATE,XR(G)::QAB1(I),XS(f)
- R(g);N_GUARD::S(H)
- P(c);::B(E),XP(c)
- Refutation
- S(f);XQ(I)
- Try
- Actual
- Q(I);
- Threat
- B(E)
- Vars
- Q(d);N_GUARD,XP(C)::S(H)
- R(g);N_GUARD,XQ(I)::S(H)
- S(e);SBLOCK,XB(F)::R1(G),XP(c)
- S(f);OGATE,XR(G)::QAB1(I),XS(f)
- P(c);::B(E),XP(c)
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