MESON Chess Problem Database
Problem Display
PID: 1077 (q3r1n1/p5B1/r7/3PPP1R/p3Nkpp/R7/1pp3P1/2b1QK2 w - - 0 1)
Shire, David J
The Problemist Supplement, 2000
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.Qxe3#
- 1...h3
- 2.g3#
- 1...Be3
- Tries
- 1.Sd2?
- threat
- 2.Qf2#
- 2.Qe3#
- 2.Qe4#
- 1...Qxd5
- 2.Qe3#
- 1...Rxe5
- 2.Bxe5#
- 2.Qf2#
- 2.Qxe5#
- 1...g3
- 2.Qe4#
- 1...Rf6
- 2.Rxa4#
- 2.Qe3#
- 2.Qe4#
- 1...Sf6
- 2.Bh6#
- 2.Qe3#
- 1...Bxd2!
- threat
- 1.Sf2?
- threat
- 2.Sd3#
- 2.Qb4#
- 2.Qe4#
- 1...Rxe5
- 2.Sd3#
- 2.Bxe5#
- 2.Qxe5#
- 1...Be3
- 2.Qxe3#
- 1...b1Q
- 2.Sd3#
- 2.Qe4#
- 1...b1R
- 2.Sd3#
- 2.Qe4#
- 1...Qc6
- 2.Sd3#
- 2.Qe4#
- 1...Qb7
- 2.Sd3#
- 2.Qe4#
- 1...Qb8
- 2.Sd3#
- 2.Qe4#
- 1...Qc8
- 2.Sd3#
- 2.Qe4#
- 1...Rb6
- 2.Sd3#
- 2.Qe4#
- 1...Rc6
- 2.Sd3#
- 2.Qe4#
- 1...Rf6
- 2.Sd3#
- 2.Qe4#
- 1...Rb8
- 2.Sd3#
- 2.Qe4#
- 1...Rc8
- 2.Sd3#
- 2.Qe4#
- 1...Bd2
- 2.Sd3#
- 2.Qxd2#
- 2.Qe4#
- 1...Sf6
- 2.Sd3#
- 2.Bh6#
- 1...g3
- 2.Rf3#
- 2.Qb4#
- 2.Qe4#
- 1...Qxd5!
- threat
- 1.Sc3?
- threat
- 2.Qf2#
- 1...Qxd5
- 2.Sxd5#
- 1...g3
- 2.Qe4#
- 1...Rf6
- 2.Rxa4#
- 1...Sf6
- 2.Bh6#
- 1...Be3!
- threat
- 1.Sg3?
- threat
- 2.Qf2#
- 2.Qb4#
- 2.Qe4#
- 1...Rxe5
- 2.Bxe5#
- 2.Qf2#
- 2.Qxe5#
- 1...hxg3
- 2.Qb4#
- 1...b1Q
- 2.Qf2#
- 2.Qe4#
- 1...b1R
- 2.Qf2#
- 2.Qe4#
- 1...Qc6
- 2.Qf2#
- 2.Qe4#
- 1...Qb7
- 2.Qf2#
- 2.Qe4#
- 1...Qb8
- 2.Qf2#
- 2.Qe4#
- 1...Qc8
- 2.Qf2#
- 2.Qe4#
- 1...Rb6
- 2.Qf2#
- 2.Qe4#
- 1...Rc6
- 2.Qf2#
- 2.Qe4#
- 1...Rf6
- 2.Rxa4#
- 2.Qe4#
- 1...Rb8
- 2.Qf2#
- 2.Qe4#
- 1...Rc8
- 2.Qf2#
- 2.Qe4#
- 1...Bd2
- 2.Qxd2#
- 2.Qf2#
- 2.Qe4#
- 1...Be3
- 2.Qxe3#
- 1...Sf6
- 2.Bh6#
- 1...Qxd5!
- threat
- 1.Sc5?
- threat
- 2.Sd3#
- 2.Qf2#
- 2.Qb4#
- 2.Qe4#
- 1...Rxe5
- 2.Sd3#
- 2.Bxe5#
- 2.Qf2#
- 2.Qxe5#
- 1...g3
- 2.Qb4#
- 2.Qe4#
- 1...b1Q
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...b1R
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...Qb7
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...Qb8
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...Rb6
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...Rf6
- 2.Sd3#
- 2.Rxa4#
- 2.Qe4#
- 1...Rb8
- 2.Sd3#
- 2.Qf2#
- 2.Qe4#
- 1...Bd2
- 2.Sd3#
- 2.Qxd2#
- 2.Qf2#
- 2.Qe4#
- 1...Be3
- 2.Qxe3#
- 1...Sf6
- 2.Sd3#
- 2.Bh6#
- 1...Qxd5!
- threat
- 1.Sd6?
- threat
- 2.Qf2#
- 2.Qb4#
- 2.Qe4#
- 1...Rxd6
- 2.Rxa4#
- 2.Qb4#
- 1...Rxe5
- 2.Bxe5#
- 2.Qf2#
- 2.Qxe5#
- 1...g3
- 2.Qb4#
- 2.Qe4#
- 1...b1Q
- 2.Qf2#
- 2.Qe4#
- 1...b1R
- 2.Qf2#
- 2.Qe4#
- 1...Be3
- 2.Qxe3#
- 1...Qc6
- 2.Qf2#
- 2.Qe4#
- 1...Qb7
- 2.Qf2#
- 2.Qe4#
- 1...Qb8
- 2.Qf2#
- 2.Qe4#
- 1...Qc8
- 2.Qf2#
- 2.Qe4#
- 1...Rb6
- 2.Qf2#
- 2.Qe4#
- 1...Rc6
- 2.Qf2#
- 2.Qe4#
- 1...Rb8
- 2.Qf2#
- 2.Qe4#
- 1...Rc8
- 2.Qf2#
- 2.Qe4#
- 1...Bd2
- 2.Qxd2#
- 2.Qf2#
- 2.Qe4#
- 1...Sf6
- 2.Bh6#
- 1...Qxd5!
- threat
- 1.Sd2?
- Keys
- 1.Sf6!
- threat
- 2.Qe4#
- 1...Qxd5
- 2.Sxd5#
- 1...Rxf6
- 2.Rxa4#
- 1...Rxe5
- 2.Qf2#
- 1...Sxf6
- 2.Bh6#
- 1...Be3
- 2.Qxe3#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::QAB1(A),XB(a)
- P(g);N_GUARD::P(C)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(j);XP(F)::QAB1(A)
- P(f);::QAR1(A)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::QAB1(A),XB(a)
- Refutation
- Q(j);XP(F)
- Try
- S(E);
- Threat
- QAR2(A)
- Vars
- Q(j);XP(F)::S(E),XQ(j)
- P(f);SBLOCK::QAR1(A)
- R(h);N_GUARD::R(D),XP(d)
- S(l);N_GUARD,S_CUTR(h)::B(J)
- Refutation
- B(a);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(g);XS(E)::QAR(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(l);N_GUARD,S_CUTR(h)::B(J)
- Refutation
- Q(j);XP(F)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- B(a);N_GUARD::QAB1(A),XB(a)
- Refutation
- Q(j);XP(F)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::QAB1(A),XB(a)
- S(l);N_GUARD::B(J)
- Refutation
- Q(j);XP(F)
- Try
- Actual
- S(E);
- Threat
- QAR1(A)
- Vars
- Q(j);XP(F)::S(E),XQ(j)
- R(h);N_GUARD,XS(E)::R(D),XP(d)
- R(k);SBLOCK,XP(G)::QAR2(A)
- S(l);N_GUARD,XS(E)::B(J)
- B(a);N_GUARD::QAB1(A),XB(a)
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