MESON Chess Problem Database
Problem Display
PID: 11863 (2n4n/3p2RK/4k1p1/1p1R1pB1/pp1P1p2/7Q/B7/8 w - - 0 1)
Chandler, Guy Wills
The Problemist, 1972
#2
7 + 10
| 6104 | A Tribute to G W Chandler | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Re7#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sa7
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Sf7
- 2.Rxg6#
- 1...d6
- 2.Re5#
- 1...Sb6
- Tries
- 1.Be7?
- threat
- 2.Re5#
- 2.Rd6#
- 1...Sf7
- 2.Re5#
- 1...b3
- 2.Re5#
- 1...d6
- 2.Rxd6#
- 1...Sd6
- 2.Re5#
- 2.Rxd6#
- 1...Sxe7!
- threat
- 1.Rxg6+?
- 1...Sxg6
- 2.Qxf5#
- 1...Kf7!
- 1...Sxg6
- 1.Rgxd7?
- threat
- 2.R5d6#
- 1...Sd6
- 2.R5xd6#
- 2.Re7#
- 1...b3!
- threat
- 1.Qf1?
- threat
- 2.Qe2#
- 2.Qe1#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...f3
- 2.Qe1#
- 1...b3!
- threat
- 1.Qh1?
- threat
- 2.Qe1#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...b3!
- threat
- 1.Qh2?
- threat
- 2.Qe2#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...f3
- 2.Rd6#
- 2.Qe5#
- 1...b3!
- threat
- 1.Qb3?
- 1...Sb6
- 2.Re7#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sa7
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Sf7
- 2.Rxg6#
- 1...a3
- 2.Rdxd7#
- 1...f3
- 2.Qe3#
- 1...d6
- 2.Re5#
- 1...axb3!
- 1...Sb6
- 1.Qc3?
- threat
- 2.Qe1#
- 1...bxc3
- 2.Rdxd7#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...b3!
- threat
- 1.Qd3?
- threat
- 2.Qe2#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...f3
- 2.Qe3#
- 1...b3!
- threat
- 1.Qf3?
- threat
- 2.Qe2#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...b3!
- threat
- 1.Qh4?
- threat
- 2.Qe1#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sf7
- 2.Rxg6#
- 1...b3!
- threat
- 1.Be7?
- Keys
- 1.Qa3!
- 1...bxa3
- 2.Rdxd7#
- 1...b3
- 2.Re5#
- 1...Sb6
- 2.Re7#
- 1...Sd6
- 2.Re5#
- 2.Re7#
- 1...Sa7
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Sf7
- 2.Rxg6#
- 1...f3
- 2.Qe3#
- 1...d6
- 2.Re5#
- 1...bxa3
- 1.Qa3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(i);N_GUARD::R1(F)
- S(i);N_GUARD::R1(F),XS(i)
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- P(h);SBLOCK::B(A)+R(D),DCHECK
- Tries
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- S(j);::B(A)+R(D),DCHECK
- P(b);::R1(D)
- P(h);::B(A)+R(D),DCHECK,XP(h)
- Refutation
- S(i);XB(E)
- Try
- R(F);CHECK,XP(g)
- Vars
- S(j);XR(F)::QAB1(B),XP(e)
- Refutation
- K(f);N_SPINP(e),S_FLIGHT
- Try
- R(F);XP(h)
- Threat
- B(A)+R(D),DCHECK
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- DUALS(2)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- P(c);::QAR(B)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Vars
- S(i);N_GUARD::R1(F)
- S(i);N_GUARD::R1(F),XS(i)
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- P(a);N_GUARD::QAB(B)+R(D),XP(h)
- P(c);N_GUARD::QAR(B)
- P(h);SBLOCK::QAB(B)+R(D),DCHECK
- Refutation
- P(a);XQ(B)
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- P(b);N_GUARD,XQ(B)::B(A)+R(D),XP(h)
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- P(c);N_GUARD::QAR(B)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e)
- Threat
- QAR(B)
- Vars
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- Refutation
- P(b);
- Try
- Actual
- Q(B);N_PINP(e)
- Vars
- P(b);N_GUARD,XQ(B)::B(A)+R(D),XP(h)
- P(b);::R1(D)
- S(i);N_GUARD::R1(F)
- S(i);N_GUARD::R1(F),XS(i)
- S(j);N_GUARD,SBLOCK::R(F),XP(g)
- P(c);N_GUARD::QAR(B)
- P(h);SBLOCK::B(A)+R(D),DCHECK
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