MESON Chess Problem Database
Problem Display
PID: 221901 (K1R5/B7/5nq1/2N1p2p/3k1pp1/1B1pN1nR/P2Q4/1b6 w - - 0 1)
Boswell, Edward
British Chess Magazine, 1929
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe4+
- 2.Sb7#
- 1...Bxa2
- 2.Sc2#
- 1...Bc2
- 2.Sxc2#
- 1...Sf1
- 2.Qb4#
- 2.Qb2#
- 1...Sh1
- 2.Qb4#
- 2.Qb2#
- 1...Se2
- 2.Qb4#
- 1...Sge4
- 2.Se6#
- 2.Qb4#
- 1...Sf5
- 2.Qb4#
- 2.Qb2#
- 1...Sfe4
- 2.Se6#
- 1...fxe3
- 2.Qb4#
- 2.Qb2#
- 1...e4
- 2.Sxd3#
- 2.Sd7#
- 1...Qe4+
- Tries
- 1.Sd1?
- threat
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 2.Qf2#
- 1...Qe4+
- 2.Sb7#
- 1...e4
- 2.Sxd3#
- 2.Sd7#
- 2.Qc3#
- 2.Qb2#
- 1...Qf7
- 2.Qc3#
- 2.Qb2#
- 2.Qf2#
- 1...Qg8
- 2.Qc3#
- 2.Qb2#
- 2.Qf2#
- 1...Bc2
- 2.Qc3#
- 2.Qb4#
- 2.Qf2#
- 1...Sf1
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Sh1
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Se2
- 2.Qb4#
- 1...Sge4
- 2.Se6#
- 2.Qb4#
- 1...Sf5
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Sfe4
- 2.Se6#
- 2.Qb4#
- 1...Sd5!
- threat
- 1.Sf1?
- threat
- 2.Qb4#
- 2.Qb2#
- 1...Qe4+
- 2.Sb7#
- 1...e4
- 2.Sxd3#
- 2.Sd7#
- 2.Qb2#
- 1...Qf7
- 2.Qb2#
- 1...Qg8
- 2.Qb2#
- 1...Bc2
- 2.Qb4#
- 1...Se2
- 2.Qb4#
- 1...Sge4
- 2.Se6#
- 2.Qb4#
- 1...Sfe4
- 2.Se6#
- 2.Qb4#
- 1...Sd5!
- threat
- 1.Sg2?
- threat
- 2.Qb4#
- 2.Qb2#
- 1...Qe4+
- 2.Sb7#
- 1...e4
- 2.Sxd3#
- 2.Sd7#
- 2.Qb2#
- 1...Qf7
- 2.Qb2#
- 1...Qg8
- 2.Qb2#
- 1...Bc2
- 2.Qb4#
- 1...Se2
- 2.Qb4#
- 1...Sge4
- 2.Se6#
- 2.Qb4#
- 1...Sfe4
- 2.Se6#
- 2.Qb4#
- 1...Sd5!
- threat
- 1.Sd5?
- threat
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 2.Qf2#
- 1...e4
- 2.Sxd3#
- 2.Sd7#
- 2.Qc3#
- 2.Qb2#
- 1...Qe4
- 2.Sxd3#
- 2.Sa4#
- 2.Sa6#
- 2.Se6#
- 2.Sb7#
- 2.Sd7#
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Bc2
- 2.Qc3#
- 2.Qb4#
- 2.Qf2#
- 1...Sf1
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Sh1
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Se2
- 2.Qb4#
- 1...Sge4
- 2.Se6#
- 2.Qb4#
- 1...Sf5
- 2.Qc3#
- 2.Qb4#
- 2.Qb2#
- 1...Sfe4
- 2.Se6#
- 2.Qb4#
- 1...Sxd5!
- threat
- 1.Sf5+?
- 1...Sxf5
- 2.Qb4#
- 2.Qb2#
- 1...Qxf5!
- 1...Sxf5
- 1.Rd8+?
- 1...Sd5
- 2.Rxd5#
- 1...Sd7!
- 1...Sd5
- 1.Sd1?
- Keys
- 1.Qf2!
- threat
- 2.Sd1#
- 2.Sd5#
- 1...Qe4+
- 2.Sb7#
- 1...Kc3
- 2.Sa6#
- 1...fxe3
- 2.Qb2#
- 1...e4
- 2.Sd7#
- 1...Sd5
- 2.Sxd5#
- 1...Sf1
- 2.Qb2#
- 1...Sh1
- 2.Qb2#
- 1...Sge4
- 2.Se6#
- 1...Sf5
- 2.Qb2#
- 1...Sfe4
- 2.Se6#
- threat
- 1.Qf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 3
- Sets
- Q(j);CHECK,SBLOCK::B(G)+S(F)
- B(a);N_GUARD,XP(A)::S(D)
- B(a);N_GUARD::S(D),XB(a)
- S(c);::QAR2(B)
- S(i);SBLOCK::B(G)+S(F),DCHECK
- Tries
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(j);CHECK,SBLOCK::B(G)+S(F)
- S(c);::QAR2(B)
- Refutation
- S(i);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,SBLOCK::B(G)+S(F)
- Q(j);::QAB(B)
- Q(j);P_PINR(I)::QAB(B)
- B(a);::QAR2(B)
- S(c);::QAR2(B)
- Refutation
- S(i);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,SBLOCK::B(G)+S(F)
- Q(j);::QAB(B)
- Q(j);P_PINR(I)::QAB(B)
- B(a);::QAR2(B)
- S(c);::QAR2(B)
- Refutation
- S(i);
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- S(c);::QAR2(B)
- Refutation
- S(i);XS(D)
- Try
- S(D);CHECK
- Refutation
- Q(j);XS(D)
- Try
- R(I);CHECK
- Vars
- S(i);N_GUARD,P_SPINS(i)::R1(I),XS(i)
- Refutation
- S(i);P_SPINS(i)
- Try
- Actual
- Q(B);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,SBLOCK::B(G)+S(F)
- K(d);S_FLIGHT::R(I)+S(F)
- P(e);P_SPINP(e),SBLOCK,XS(D)::QAB(B)
- P(g);SBLOCK::B(G)+S(F)
- S(i);::QAB(B)+S(D),XS(i)
- S(c);::QAB(B)
- S(c);SBLOCK::B(G)+S(F),DCHECK
- S(i);SBLOCK::B(G)+S(F),DCHECK
Developed and maintained by Brian Stephenson.
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