MESON Chess Problem Database
Problem Display
PID: 192640 (4N2R/5k2/2N1p3/5rpp/P1P3rp/7P/K1Q1B3/8 w - - 0 1)
Rains, Cyril George
The Observer, 1939
(First published on Sun Feb 19 1939)
#2
9 + 7
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kg6
- 2.Se5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rxc4
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...e5
- 2.Qxf5#
- 1...Kg6
- Tries
- 1.Kb2?
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rb5+!
- 1...Kg6
- 1.Se5+?
- 1...Rxe5
- 2.Qh7#
- 1...Ke7!
- 1...Rxe5
- 1.Bd1?
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rf2!
- 1...Kg6
- 1.Bxg4?
- threat
- 2.Bxh5#
- 1...Kg6
- 2.Se5#
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rf6
- 2.Qh7#
- 1...hxg4!
- threat
- 1.Qb1?
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rg2!
- 1...Kg6
- 1.Qd3?
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rg2!
- 1...Kg6
- 1.Qe4?
- 1...Kg6
- 2.Se5#
- 1...Rxe4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rg2!
- 1...Kg6
- 1.a5?
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...e5
- 2.Qxf5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rxa5+!
- 1...Kg6
- 1.c5?
- 1...Kg6
- 2.Se5#
- 1...Rxc5
- 2.Qh7#
- 1...e5
- 2.Qxf5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rb4
- 2.Bxh5#
- 1...Rc4
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rf1
- 2.Qh7#
- 1...Rf2
- 2.Qh7#
- 1...Rf3
- 2.Qh7#
- 1...Rff4
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Rxa4+!
- 1...Kg6
- 1.Kb2?
- Keys
- 1.Bf3!
- 1...Kg6
- 2.Se5#
- 1...Rxc4
- 2.Bxh5#
- 1...Rxf3
- 2.Qh7#
- 1...e5
- 2.Qxf5#
- 1...Rg1
- 2.Bxh5#
- 1...Rg2
- 2.Bxh5#
- 1...Rg3
- 2.Bxh5#
- 1...Rd4
- 2.Bxh5#
- 1...Re4
- 2.Bxh5#
- 1...Rgf4
- 2.Bxh5#
- 1...Rff4
- 2.Qh7#
- 1...Ra5
- 2.Qh7#
- 1...Rb5
- 2.Qh7#
- 1...Rc5
- 2.Qh7#
- 1...Rd5
- 2.Qh7#
- 1...Re5
- 2.Qh7#
- 1...Rf6
- 2.Qh7#
- 1...Kg6
- 1.Bf3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE::B(C),XP(e)
- R(a);OGATE,XP(F)::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
- P(f);N_GUARD::QAR2(B),XR(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- Refutation
- R(c);CHECK
- Try
- S(G);CHECK
- Vars
- R(c);OGATE,XS(G)::QAR2(B)
- Refutation
- K(g);P-FLIGHT
- Try
- B(C);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(a);OGATE,P_PINQ(B)::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
- Refutation
- R(c);P_PINQ(B)
- Try
- B(C);XR(a)
- Threat
- B(C),XP(e)
- Vars
- P(f);N_GUARD::QAR2(B),XR(c)
- R(c);OGATE::QAR2(B)
- Refutation
- P(e);XB(C)
- Try
- Q(B);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINB(C)::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
- Refutation
- R(a);P_PINB(C)
- Try
- Q(B);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINB(C)::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
- Refutation
- R(a);P_PINB(C)
- Try
- Q(B);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XQ(B)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINB(C)::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
- Refutation
- R(a);P_PINB(C)
- Try
- P(E);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- Refutation
- R(c);CHECK,XP(E)
- Try
- P(F);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(c);OGATE,XP(F)::QAR2(B)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- Refutation
- R(a);CHECK,XP(E)
- Try
- Actual
- B(C);
- Vars
- K(g);P_SPINR(c),S_FLIGHT::S(G)
- R(a);OGATE,XP(F)::B(C),XP(e)
- R(c);OGATE,XB(C)::QAR2(B)
- P(f);N_GUARD::QAR2(B),XR(c)
- R(a);OGATE::B(C),XP(e)
- R(a);OGATE,P_PINQ(B)::B(C),XP(e)
- R(c);OGATE::QAR2(B)
- R(c);OGATE,P_PINP(E)::QAR2(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).