MESON Chess Problem Database
Problem Display
PID: 218856 (1N6/4pq2/B4r1R/BbkpP3/1N6/nQ1pP3/K4n2/8 w - - 0 1)
Erokhin, Vladimir Alekseevich
Uralski Problemist, 1996
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Qxd5#
- 1...Qg6
- 2.Qxd5#
- 1...Qe8
- 2.Qxd5#
- 1...Qg7
- 2.Qxd5#
- 1...Qh7
- 2.Qxd5#
- 1...Qf8
- 2.Qxd5#
- 1...Rf3
- 2.Bb6#
- 1...Rf4
- 2.Bb6#
- 1...Rf5
- 2.Bb6#
- 1...Rb6
- 2.Bxb6#
- 1...Rc6
- 2.Sd7#
- 1...Re6
- 2.Qxd5#
- 1...Bc4
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Qh5
- Tries
- 1.Sc2?
- threat
- 2.Qb4#
- 1...Sxc2
- 2.Qxb5#
- 1...Rf4
- 2.Bb6#
- 1...d4
- 2.exd4#
- 1...Bc4!
- threat
- 1.Sxd3+?
- 1...Bxd3
- 2.Qxa3#
- 2.Qb4#
- 1...Sxd3!
- 1...Bxd3
- 1.Qc3+?
- 1...Sc4
- 2.Qd4#
- 1...Bc4+!
- 1...Sc4
- 1.Sc2?
- Keys
- 1.S4c6!
- threat
- 2.Qb4#
- 1...Rf4
- 2.Sd7#
- 1...Bc4
- 2.Bb6#
- 1...Sc2
- 2.Qxb5#
- 1...d4
- 2.exd4#
- threat
- 1.S4c6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(i);N_GUARD::QAR1(B),XP(f)
- R(g);N_GUARD::B(E)
- R(g);N_GUARD::B(E),XR(g)
- R(g);S_CUTB(d)::S(I)
- R(g);S_CUTQ(i)::QAR1(B),XP(f)
- B(d);N_GUARD,P_PINQ(B)::S(I)
- B(d);N_GUARD::S(I),XB(d)
- Tries
- Try
- S(D);
- Threat
- QAB1(B)
- Vars
- S(b);N_GUARD,XS(D)::QAR1(B),XB(d)
- R(g);N_GUARD::B(E)
- P(f);OGATE,P_PINQ(B)::P(C),XP(f)
- Refutation
- B(d);P_PINQ(B)
- Try
- S(D);CHECK,XP(c)
- Refutation
- S(a);XS(D)
- Try
- Q(B);CHECK
- Vars
- S(b);P_SPINS(b)::QAB1(B)
- Refutation
- B(d);CHECK,P_SPINB(d)
- Try
- Actual
- S(D);
- Threat
- QAB1(B)
- Vars
- R(g);::S(I)
- B(d);P_PINQ(B)::B(E)
- S(b);N_GUARD::QAR1(B),XB(d)
- P(f);OGATE,P_PINQ(B)::P(C),XP(f)
Developed and maintained by Brian Stephenson.
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