MESON Chess Problem Database
Problem Display
PID: 239963 (3b2b1/K2B4/4nR2/k6r/8/1Q1n4/r7/4R3 w - - 0 1)
Kipping, Cyril Stanley
Parallele 50, 1947
#2
5 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxa1#
- 1...Rb2
- 2.Qa4#
- 2.Qa3#
- 1...Rc2
- 2.Qa4#
- 2.Qa3#
- 1...Rd2
- 2.Qa4#
- 2.Qa3#
- 1...Re2
- 2.Qa4#
- 2.Qa3#
- 1...Rf2
- 2.Qa4#
- 2.Qa3#
- 1...Rg2
- 2.Qa4#
- 2.Qa3#
- 1...Rah2
- 2.Qa4#
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Ra4
- 2.Qxa4#
- 1...Rh1
- 2.Qb5#
- 1...Rhh2
- 2.Qb5#
- 1...Rh3
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Rh6
- 2.Qb5#
- 1...Rh7
- 2.Qb5#
- 1...Rh8
- 2.Qb5#
- 1...Bb6+
- 2.Qxb6#
- 1...Bxf6
- 2.Qb6#
- 1...Be7
- 2.Qb6#
- 1...Sc1
- 2.Qc3#
- 1...Sxe1
- 2.Qc3#
- 1...Sb2
- 2.Qc3#
- 1...Sf2
- 2.Qc3#
- 1...Sdf4
- 2.Qc3#
- 1...Sdc5
- 2.Qc3#
- 2.Qb5#
- 1...Se5
- 2.Qc3#
- 2.Qb5#
- 1...Sd4
- 2.Ra6#
- 1...Sef4
- 2.Ra6#
- 1...Sec5
- 2.Qb5#
- 1...Sg5
- 2.Ra6#
- 2.Qb5#
- 1...Sc7
- 2.Qb6#
- 1...Sg7
- 2.Ra6#
- 1...Sf8
- 2.Ra6#
- 1...Ra1
- Tries
- 1.Re4?
- threat
- 2.Qxa2#
- 1...Bb6+
- 2.Qxb6#
- 1...Rb2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Rc2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Rd2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Re2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Rf2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Rg2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Rah2
- 2.Ra4#
- 2.Qa4#
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Ra4
- 2.Rxa4#
- 2.Qxa4#
- 1...Rhh2
- 2.Qb5#
- 1...Be7
- 2.Qb6#
- 1...Sc1
- 2.Qc3#
- 2.Qb4#
- 1...Sb2
- 2.Qc3#
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Sdc5
- 2.Qc3#
- 2.Qb4#
- 2.Qb5#
- 1...Sd4
- 2.Ra6#
- 1...Sef4
- 2.Ra6#
- 1...Sec5
- 2.Qb5#
- 1...Sg5
- 2.Ra6#
- 2.Qb5#
- 1...Sc7
- 2.Qb6#
- 1...Sg7
- 2.Ra6#
- 1...Sf8
- 2.Ra6#
- 1...Ra1!
- threat
- 1.Re5+?
- 1...Sdc5
- 2.Qc3#
- 2.Qb5#
- 1...Sxe5
- 2.Qc3#
- 2.Qb5#
- 1...Sec5
- 2.Ra6#
- 2.Qb5#
- 1...Rxe5!
- 1...Sdc5
- 1.Rf2?
- threat
- 2.Rxa2#
- 1...Bb6+
- 2.Qxb6#
- 1...Rxf2
- 2.Qa4#
- 2.Qa3#
- 1...Sxf2
- 2.Qc3#
- 1...Ra1
- 2.Rxa1#
- 1...Rb2
- 2.Qa4#
- 2.Qa3#
- 1...Rc2
- 2.Qa4#
- 2.Qa3#
- 1...Rd2
- 2.Qa4#
- 2.Qa3#
- 1...Re2
- 2.Qa4#
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Ra4
- 2.Qxa4#
- 1...Rh2
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Be7
- 2.Qb6#
- 1...Sc1
- 2.Qc3#
- 1...Sb2
- 2.Qc3#
- 1...Sdc5
- 2.Qc3#
- 2.Qb5#
- 1...Sec5
- 2.Qb5#
- 1...Sb4!
- threat
- 1.Rf5+?
- 1...Sdc5
- 2.Qc3#
- 2.Qb5#
- 1...Se5
- 2.Qc3#
- 2.Qb5#
- 1...Sec5
- 2.Qb5#
- 1...Rxf5!
- 1...Sdc5
- 1.Re4?
- Keys
- 1.Rb1!
- threat
- 2.Qxa2#
- 1...Bb6+
- 2.Qxb6#
- 1...Ra1
- 2.Rxa1#
- 1...Rb2
- 2.Qa4#
- 2.Qa3#
- 1...Rc2
- 2.Qa4#
- 2.Qa3#
- 1...Rd2
- 2.Qa4#
- 2.Qa3#
- 1...Re2
- 2.Qa4#
- 2.Qa3#
- 1...Rf2
- 2.Qa4#
- 2.Qa3#
- 1...Rg2
- 2.Qa4#
- 2.Qa3#
- 1...Rah2
- 2.Qa4#
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Ra4
- 2.Qxa4#
- 1...Rhh2
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Be7
- 2.Qb6#
- 1...Sc1
- 2.Qc3#
- 2.Qb4#
- 1...Sb2
- 2.Qc3#
- 1...Sb4
- 2.Qxb4#
- 1...Sdc5
- 2.Qc3#
- 2.Qb4#
- 2.Qb5#
- 1...Sd4
- 2.Ra6#
- 1...Sef4
- 2.Ra6#
- 1...Sec5
- 2.Qb5#
- 1...Sg5
- 2.Ra6#
- 2.Qb5#
- 1...Sc7
- 2.Qb6#
- 1...Sg7
- 2.Ra6#
- 1...Sf8
- 2.Ra6#
- threat
- 1.Rb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(a);OGATEB::R(A),XR(a)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(d);N_GUARD::QAR1(B)
- R(d);N_GUARD,SBLOCK::QAR1(B)
- R(d);N_GUARD::QAR1(B),XR(d)
- R(d);N_GUARD,P_PINB(E)::QAR1(B)
- B(f);CHECK,N_GUARD::QAB1(B),XB(f)
- B(f);N_GUARD,XR(C)::QAB1(B)
- B(f);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB(B)
- S(b);N_GUARD,XR(A)::QAB(B)
- S(e);OGATE::R1(C)
- S(e);S_CUTR(d)::QAR1(B)
- S(e);S_CUTB(f)::QAB1(B)
- Tries
- Try
- R(A);
- Threat
- QAR(B),XR(a)
- Vars
- B(f);CHECK,N_GUARD::QAB1(B),XB(f)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(d);N_GUARD::QAR1(B)
- B(f);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(e);OGATE::R1(C)
- S(e);S_CUTR(d)::QAR1(B)
- S(e);S_CUTB(f)::QAB1(B)
- Refutation
- R(a);
- Try
- R(A);CHECK
- Refutation
- R(d);XR(A)
- Try
- R(C);
- Threat
- R(C),XR(a)
- Vars
- B(f);CHECK,N_GUARD::QAB1(B),XB(f)
- S(b);N_GUARD,XR(C)::QAB(B)
- R(a);OGATEB::R(A),XR(a)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(d);N_GUARD::QAR1(B)
- R(d);N_GUARD,SBLOCK::QAR1(B)
- B(f);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB(B)
- S(e);S_CUTR(d)::QAR1(B)
- Refutation
- S(b);
- Try
- R(C);CHECK
- Vars
- S(e);P_SPINS(e)::QAR1(B)
- Refutation
- R(d);XR(C)
- Try
- Actual
- R(A);
- Threat
- QAR(B),XR(a)
- Vars
- B(f);CHECK,N_GUARD::QAB1(B),XB(f)
- R(a);OGATEB::R(A),XR(a)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(d);N_GUARD::QAR1(B)
- R(d);N_GUARD,SBLOCK::QAR1(B)
- B(f);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(e);OGATE::R1(C)
- S(e);S_CUTR(d)::QAR1(B)
- S(e);S_CUTB(f)::QAB1(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).