MESON Chess Problem Database
Problem Display
PID: 258294 (N7/3pR2K/n2k1P2/1P5R/2P1p3/b3p3/3r4/BQ6 w - - 0 1)
Gleave, Walter
English Mechanic and World of Science, 1891
(First published on Fri May 22 1891)
#2
9 + 7
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxd1#
- 1...Ra2
- 2.Rd5#
- 1...Rb2
- 2.Rd5#
- 1...Rc2
- 2.Rd5#
- 1...Re2
- 2.Rd5#
- 1...Rf2
- 2.Rd5#
- 1...Rg2
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Bc5
- 2.Be5#
- 1...Sb4
- 2.c5#
- 1...Sc5
- 2.Be5#
- 1...Rd1
- Tries
- 1.Qd3+?
- 1...exd3
- 2.Rd5#
- 1...Rxd3!
- 1...exd3
- 1.Qxe4?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Rf2
- 2.Rd5#
- 2.Qd3#
- 2.Qd5#
- 2.Qd4#
- 2.Qe5#
- 1...Rd4
- 2.Qxd4#
- 2.Qe5#
- 1...Bb2!
- threat
- 1.Qe1?
- threat
- 2.Qg3#
- 1...Rd5
- 2.Rxd5#
- 1...Rf2
- 2.Rd5#
- 1...Rg2
- 2.Rd5#
- 1...Bb2!
- threat
- 1.Qf1?
- threat
- 2.Qf4#
- 1...Rd5
- 2.Rxd5#
- 1...Rf2
- 2.Rd5#
- 1...Bb2!
- threat
- 1.Qg1?
- threat
- 2.Qg3#
- 1...Rd5
- 2.Rxd5#
- 1...Rf2
- 2.Rd5#
- 1...Rg2
- 2.Rd5#
- 1...Bb2!
- threat
- 1.Qb2?
- threat
- 2.Qe5#
- 1...Rxb2
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Rd4
- 2.Qxd4#
- 2.Qh2#
- 1...Bxb2!
- threat
- 1.Qb4+?
- 1...Sxb4
- 2.c5#
- 1...Sc5
- 2.Be5#
- 1...Bxb4!
- 1...Sxb4
- 1.Qd3+?
- Keys
- 1.Qa2!
- 1...Rxa2
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Rd3
- 2.Qh2#
- 1...Rd1
- 2.Qh2#
- 1...Rb2
- 2.Rd5#
- 1...Rc2
- 2.Rd5#
- 1...Re2
- 2.Rd5#
- 1...Rf2
- 2.Rd5#
- 1...Rg2
- 2.Rd5#
- 1...Rh2
- 2.Qxh2#
- 1...Rd4
- 2.Qh2#
- 1...Bc1
- 2.Qxa6#
- 1...Bb2
- 2.Qxa6#
- 1...Bb4
- 2.Qxa6#
- 1...Bc5
- 2.Be5#
- 1...Sb4
- 2.c5#
- 1...Sc5
- 2.Be5#
- 1...Sc7
- 2.Qxa3#
- 1...Sb8
- 2.Qxa3#
- 1...e2
- 2.Qxd2#
- 1...Rxa2
- 1.Qa2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(a);OGATEB::QAR(B),XR(a)
- R(a);N_GUARD::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- B(b);SBLOCK::B(A)
- S(e);N_GUARD,S_CUTB(b)::P(C)
- S(e);SBLOCK::B(A)
- Tries
- Try
- Q(B);CHECK
- Vars
- P(d);XQ(B)::R1(E)
- Refutation
- R(a);XQ(B)
- Try
- Q(B);XP(d)
- Threat
- DUALS(2)
- Refutation
- B(b);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- R(a);N_GUARD::R1(E),XR(a)
- R(a);N_GUARD::R1(E)
- Refutation
- B(b);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- R(a);N_GUARD::R1(E),XR(a)
- R(a);N_GUARD::R1(E)
- Refutation
- B(b);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- R(a);N_GUARD::R1(E),XR(a)
- R(a);N_GUARD::R1(E)
- Refutation
- B(b);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(a);N_GUARD,XQ(B)::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- Refutation
- B(b);XQ(B)
- Try
- Q(B);CHECK
- Vars
- S(e);N_GUARD,XQ(B)::P(C)
- S(e);P_SPINS(e)::B(A)
- Refutation
- B(b);XQ(B)
- Try
- Actual
- Q(B);
- Vars
- R(a);N_GUARD,XQ(B)::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- R(a);OGATE::QAB(B)
- R(a);N_GUARD::R1(E)
- R(a);OGATE,P_PINR(E)::QAB(B),XR(a)
- B(b);OGATE::QAR(B),XS(e)
- B(b);SBLOCK::B(A)
- S(e);N_GUARD,S_CUTB(b)::P(C)
- S(e);SBLOCK::B(A)
- S(e);N_GUARD::QAB(B),XB(b)
- P(c);N_GUARD::QAR(B),XR(a)
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