MESON Chess Problem Database
Problem Display
PID: 11227 (8/1R6/3p1K2/3P4/2nNQ3/r1k5/P4R2/2r5 w - - 0 1)
Westbury, Eric Ernest
Chess, 1937
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rxa2
- 2.Rb3#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- Tries
- 1.Kg5?
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rf1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rg1+!
- 1...Rxa2
- 1.Ke7?
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rf1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Ra7!
- 1...Rxa2
- 1.Sb3?
- threat
- 2.Qd4#
- 1...Rxb3
- 2.Rxb3#
- 1...Rd1
- 2.Rc2#
- 2.Qc2#
- 1...Sd2!
- threat
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Rd1
- 2.Rc2#
- 2.Qc2#
- 1...Sd2!
- threat
- 1.Sf5?
- threat
- 2.Qd4#
- 1...Rd1
- 2.Rc2#
- 2.Qc2#
- 1...Sd2!
- threat
- 1.Sc6?
- threat
- 2.Qd4#
- 1...Rd1
- 2.Rc2#
- 2.Qc2#
- 1...Sd2!
- threat
- 1.Se6?
- threat
- 2.Qd4#
- 1...Rd1
- 2.Rc2#
- 2.Qc2#
- 1...Sd2!
- threat
- 1.Rg2?
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rf1+!
- 1...Rxa2
- 1.Rh2?
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rf1+!
- 1...Rxa2
- 1.Rf3+?
- 1...Kd2
- 2.Qe2#
- 1...Se3!
- 1...Kd2
- 1.Rb1?
- threat
- 2.Sb5#
- 1...Rb3
- 2.Rxb3#
- 1...Ra5
- 2.Rb3#
- 1...Rxb1!
- threat
- 1.Rbb2?
- threat
- 2.Sb5#
- 1...Rc2
- 2.Rfxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra5
- 2.Rb3#
- 1...Sd2!
- threat
- 1.Rb6?
- 1...Rxa2
- 2.Rb3#
- 1...Sxb6
- 2.Sb5#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rf1!
- 1...Rxa2
- 1.Rb8?
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rf1!
- 1...Rxa2
- 1.Kg5?
- Keys
- 1.Ke6!
- 1...Rxa2
- 2.Rb3#
- 1...Sb2
- 2.Sb5#
- 1...Sd2
- 2.Se2#
- 1...Se3
- 2.Sb5#
- 1...Sa5
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...Ra1
- 2.Rc2#
- 1...Rb1
- 2.Rc2#
- 1...Rd1
- 2.Rc2#
- 1...Re1
- 2.Rc2#
- 1...Rf1
- 2.Rc2#
- 1...Rg1
- 2.Rc2#
- 1...Rh1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Rxb3#
- 1...Ra4
- 2.Rb3#
- 1...Ra5
- 2.Rb3#
- 1...Ra6
- 2.Rb3#
- 1...Ra7
- 2.Rb3#
- 1...Ra8
- 2.Rb3#
- 1...Rxa2
- 1.Ke6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD,XP(A)::R1(G)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- R(b);N_GUARD,P_PINP(E)::R1(G)
- Refutation
- R(a);CHECK
- Try
- K(F);S_FLIGHT
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINQ(D)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(b);P_PINR(G)
- Try
- S(C);
- Threat
- QAB1(D)
- Vars
- R(b);OGATE,XS(C)::R1(G),XR(b)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Refutation
- S(d);
- Try
- R(B);
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(a);CHECK
- Try
- R(B);
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(a);CHECK
- Try
- R(B);CHECK
- Vars
- K(c);S_FLIGHT::QAR1(D)
- Refutation
- S(d);P_SPINS(d)
- Try
- R(G);
- Threat
- S(C)
- Vars
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(a);XR(G)
- Try
- R(G);
- Threat
- S(C)
- Vars
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- S(d);
- Try
- R(G);
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);XR(G)::S(C)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(a);P_PINR(B)
- Try
- R(G);
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
- Refutation
- R(a);P_PINR(B)
- Try
- Actual
- K(F);P-FLIGHT
- Vars
- R(b);N_GUARD,XP(A)::R1(G)
- S(d);::S(C)
- S(d);SBLOCK::S(C)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINQ(D)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(b);N_GUARD::R1(G),XR(b)
- R(b);N_GUARD::R1(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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