MESON Chess Problem Database
Problem Display
PID: 224548 (2BB4/1R6/2kP1N2/2P5/p1p5/b2N2K1/Qr6/8 w - - 0 1)
Billington, Thomas Henry
English Mechanic and World of Science, 1887
(First published on Fri Oct 21 1887)
#2
9 + 5
| 6490 | yacpdb | 2020 |
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qg2#
- 1...Rxa2
- 2.Rb6#
- 1...Rc2
- 2.Rb6#
- 1...Rd2
- 2.Rb6#
- 1...Re2
- 2.Rb6#
- 1...Rf2
- 2.Rb6#
- 1...Rg2+
- 2.Qxg2#
- 1...Rh2
- 2.Rb6#
- 1...Rb3
- 2.Qg2#
- 1...Rb4
- 2.Qg2#
- 1...Rb5
- 2.Rc7#
- 2.Qg2#
- 1...Rb6
- 2.Rxb6#
- 1...Bb4
- 2.Rb6#
- 2.Qxa4#
- 1...cxd3
- 2.Qd5#
- 1...c3
- 2.Qd5#
- 1...Rb1
- Tries
- 1.Be7?
- 1...Rg2+
- 2.Qxg2#
- 1...Rxa2
- 2.Rb6#
- 1...Bxc5
- 2.Se5#
- 1...cxd3
- 2.Qd5#
- 1...Rb6
- 2.Rxb6#
- 1...Rb1
- 2.Qg2#
- 1...Rc2
- 2.Rb6#
- 1...Rd2
- 2.Rb6#
- 1...Re2
- 2.Rb6#
- 1...Rf2
- 2.Rb6#
- 1...Rh2
- 2.Rb6#
- 1...Rb3
- 2.Qg2#
- 1...Rb4
- 2.Qg2#
- 1...Rb5
- 2.Rc7#
- 2.Qg2#
- 1...Bb4
- 2.Rb6#
- 2.Qxa4#
- 1...c3
- 2.Qd5#
- 1...Rxb7!
- 1...Rg2+
- 1.Rxb2?
- threat
- 2.Bb7#
- 2.Bd7#
- 2.Rb6#
- 1...Bxb2
- 2.Qxa4#
- 1...cxd3
- 2.Qd5#
- 1...Bb4
- 2.Qxa4#
- 1...Bxc5!
- threat
- 1.Rb4?
- threat
- 2.Bb7#
- 2.Bd7#
- 1...Rg2+
- 2.Qxg2#
- 1...Bxb4
- 2.Qxa4#
- 1...cxd3
- 2.Qd5#
- 1...Rxb4!
- threat
- 1.Qxc4?
- threat
- 2.Se5#
- 2.Rc7#
- 2.Qd5#
- 2.Qe4#
- 1...Rxb7
- 2.Se5#
- 1...Bxc5
- 2.Qd5#
- 2.Qxc5#
- 1...Re2
- 2.Rb6#
- 2.Rc7#
- 2.Qb5#
- 2.Qd5#
- 2.Qa6#
- 2.Qxa4#
- 1...Rb3
- 2.Rc7#
- 2.Qd5#
- 2.Qe4#
- 1...Rb4
- 2.Se5#
- 2.Rc7#
- 2.Qd5#
- 1...Rb6
- 2.Se5#
- 2.Rxb6#
- 2.Rc7#
- 1...Rg2+!
- threat
- 1.Qxb2?
- threat
- 2.Bd7#
- 2.Rb6#
- 2.Rc7#
- 2.Qg2#
- 2.Qb5#
- 2.Qb6#
- 1...Bxb2
- 2.Rb6#
- 1...cxd3
- 2.Rc7#
- 2.Qb5#
- 2.Qb6#
- 1...Bb4
- 2.Rb6#
- 2.Qg2#
- 1...Bxc5!
- threat
- 1.Be7?
- Keys
- 1.Bc7!
- 1...Rg2+
- 2.Qxg2#
- 1...Rxa2
- 2.Rb6#
- 1...Rxb7
- 2.Bd7#
- 1...Bxc5
- 2.Se5#
- 1...cxd3
- 2.Qd5#
- 1...Rb6
- 2.Rxb6#
- 1...Rb1
- 2.Qg2#
- 1...Rc2
- 2.Rb6#
- 1...Rd2
- 2.Rb6#
- 1...Re2
- 2.Rb6#
- 1...Rf2
- 2.Rb6#
- 1...Rh2
- 2.Rb6#
- 1...Rb3
- 2.Qg2#
- 1...Rb4
- 2.Qg2#
- 1...Rb5
- 2.Qg2#
- 1...Bb4
- 2.Rb6#
- 2.Qxa4#
- 1...c3
- 2.Qd5#
- 1...Rg2+
- 1.Bc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(a);OGATE::QAB(A)
- R(a);N_GUARD,XQ(A)::R1(G)
- R(a);N_GUARD::R1(G)
- R(a);CHECK,OGATE::QAB(A),XR(a)
- R(a);OGATE,P_PINS(B)::QAB(A)
- R(a);N_GUARD::R1(G),XR(a)
- P(d);OGATE,XS(B)::QAB1(A)
- P(d);OGATE::QAB1(A)
- Tries
- Try
- B(I);
- Vars
- R(a);CHECK,OGATE::QAB(A),XR(a)
- R(a);N_GUARD,XQ(A)::R1(G)
- B(b);SBLOCK,XP(D)::S(B)
- P(d);OGATE,XS(B)::QAB1(A)
- R(a);N_GUARD::R1(G),XR(a)
- R(a);OGATE::QAB(A)
- R(a);N_GUARD::R1(G)
- R(a);OGATE,P_PINS(B)::QAB(A)
- P(d);OGATE::QAB1(A)
- Refutation
- R(a);XR(G)
- Try
- R(G);XR(a)
- Threat
- DUALS(3)
- Vars
- B(b);OGATE,XR(G)::QAB(A),XP(c)
- P(d);OGATE,XS(B)::QAB1(A)
- B(b);OGATE::QAB(A),XP(c)
- Refutation
- B(b);XP(D)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,OGATE::QAB(A),XR(a)
- B(b);OGATE,XR(G)::QAB(A),XP(c)
- P(d);OGATE,XS(B)::QAB1(A)
- Refutation
- R(a);XR(G)
- Try
- Q(A);XP(d)
- Threat
- DUALS(4)
- Vars
- R(a);XR(G)::S(B)
- Refutation
- R(a);CHECK
- Try
- Q(A);XR(a)
- Threat
- DUALS(6)
- Vars
- B(b);XQ(A)::R1(G)
- Refutation
- B(b);XP(D)
- Try
- Actual
- B(I);
- Vars
- R(a);CHECK,OGATE::QAB(A),XR(a)
- R(a);N_GUARD,XQ(A)::R1(G)
- R(a);SBLOCK,XR(G)::B(H)
- B(b);SBLOCK,XP(D)::S(B)
- P(d);OGATE,XS(B)::QAB1(A)
- R(a);N_GUARD::R1(G),XR(a)
- R(a);OGATE::QAB(A)
- R(a);N_GUARD::R1(G)
- R(a);OGATE,P_PINS(B)::QAB(A)
- P(d);OGATE::QAB1(A)
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