MESON Chess Problem Database
Problem Display
PID: 7776 (3n4/2B5/1R1N4/r1k1p3/pb1pB3/2pRp3/2P1K3/N1Q5 w - - 0 1)
Cresswell, James E
The Problemist, 1993
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Rb5
- Tries
- 1.Kd1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e2+!
- 1...Rb5
- 1.Ke1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e2!
- 1...Rb5
- 1.Kf1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e2+!
- 1...Rb5
- 1.Kf3?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e2!
- 1...Rb5
- 1.Bh1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e4!
- 1...Rb5
- 1.Bg2?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e4!
- 1...Rb5
- 1.Bf3?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...e4!
- 1...Rb5
- 1.Bxd8?
- threat
- 2.Rc6#
- 1...Ba3
- 2.Qxa3#
- 1...Ra6!
- threat
- 1.Rd1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...d3+!
- 1...Rb5
- 1.Rxc3+?
- 1...dxc3
- 2.Qxe3#
- 1...Bxc3!
- 1...dxc3
- 1.Rxe3?
- 1...dxe3
- 2.Qxe3#
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...d3+!
- 1...dxe3
- 1.Rxd4?
- threat
- 2.Rc4#
- 2.Rd5#
- 1...Kxd4
- 2.Qxe3#
- 1...exd4!
- threat
- 1.Qb2?
- threat
- 2.Qxb4#
- 1...Rb5
- 2.Rxb5#
- 1...Ba3
- 2.Qxa3#
- 1...Sc6
- 2.Rxc6#
- 1...cxb2!
- threat
- 1.Qa3?
- threat
- 2.Qxb4#
- 1...Rb5
- 2.Rxb5#
- 1...Sc6
- 2.Rxc6#
- 1...Bxa3!
- threat
- 1.Qb1?
- threat
- 2.Qxb4#
- 1...Rb5
- 2.Rxb5#
- 1...Sc6
- 2.Rxc6#
- 1...Ba3!
- threat
- 1.Qd1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Ba3!
- 1...Rb5
- 1.Qe1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Ba3!
- 1...Rb5
- 1.Qf1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Ba3!
- 1...Rb5
- 1.Qg1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Ba3!
- 1...Rb5
- 1.Qh1?
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...Ba3!
- 1...Rb5
- 1.Kd1?
- Keys
- 1.Qxe3!
- 1...dxe3
- 2.Rd5#
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Ra8
- 2.Rb5#
- 1...Ba3
- 2.Rxc3#
- 1...Sc6
- 2.Rxc6#
- 1...Se6
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...a3
- 2.Sb3#
- 1...dxe3
- 1.Qxe3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(b);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- K(D);S_FLIGHT
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(b);CHECK
- Try
- K(D);S_FLIGHT
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- B(F);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(h);
- Try
- B(F);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(h);
- Try
- B(F);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(h);
- Try
- B(I);XS(i)
- Threat
- R1(G)
- Vars
- B(d);OGATEB::QAB(B),XB(d)
- Refutation
- R(f);
- Try
- R(E);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(e);CHECK
- Try
- R(E);CHECK,XP(a)
- Vars
- P(e);S_CUTB(d),XR(E)::QAB(B),XP(b)
- Refutation
- B(d);XR(E)
- Try
- R(E);XP(b)
- Vars
- P(e);OGATE,XR(E)::QAB(B),XP(e)
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(e);CHECK
- Try
- R(E);XP(e)
- Threat
- DUALS(2)
- Vars
- K(g);OGATEB,S_FLIGHT,XR(E)::QAB1(B),XP(b)
- Refutation
- P(h);XR(E)
- Try
- Q(B);
- Threat
- QAB1(B),XB(d)
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- B(d);OGATEB::QAB(B),XB(d)
- S(i);N_GUARD::R1(G),XS(i)
- Refutation
- P(a);XQ(B)
- Try
- Q(B);P_PINB(d)
- Threat
- QAB1(B),XB(d)
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- S(i);N_GUARD::R1(G),XS(i)
- Refutation
- B(d);N_SPINB(d),XQ(B)
- Try
- Q(B);
- Threat
- QAB1(B),XB(d)
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- S(i);N_GUARD::R1(G),XS(i)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
- Refutation
- B(d);
- Try
- Actual
- Q(B);P_PINP(e),XP(b)
- Vars
- P(e);N_SPINP(e),OGATE,XQ(B)::R1(E)
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(d);N_GUARD::R(E),XP(a)
- S(i);N_GUARD::R1(G),XS(i)
- S(i);N_GUARD::R1(G)
- P(c);N_GUARD::S(A)
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).