MESON Chess Problem Database
Problem Display
PID: 71758 (4N3/5nN1/pK3P2/n2k3r/4R3/RP4p1/1QB2p1b/q7 w - - 0 1)
Kipping, Cyril Stanley
Chess, 1952
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Rxa5#
- 1...Qb1
- 2.Rxa5#
- 2.Qd4#
- 1...Qc1
- 2.Rxa5#
- 2.Qd4#
- 1...Qd1
- 2.Rxa5#
- 1...Qe1
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qg1
- 2.Rxa5#
- 2.Qd4#
- 1...Qh1
- 2.Rxa5#
- 2.Qd4#
- 1...Qa2
- 2.Qd4#
- 1...Qxa3
- 2.Qd4#
- 1...Re5
- 2.Rd4#
- 1...Sxb3
- 2.Qxb3#
- 1...Sc4+
- 2.bxc4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Re5#
- 1...Sd6
- 2.Sc7#
- 1...Qxb2
- Tries
- 1.Sf5?
- threat
- 2.Se3#
- 2.Se7#
- 2.Sc7#
- 1...Sc4+
- 2.bxc4#
- 1...Qxa3
- 2.Se3#
- 2.Sc7#
- 2.Qd4#
- 1...Se5
- 2.Sc7#
- 2.Rxe5#
- 1...f1S
- 2.Se7#
- 2.Sc7#
- 1...Qc1
- 2.Se7#
- 2.Sc7#
- 2.Rxa5#
- 2.Qd4#
- 1...Qe1
- 2.Se7#
- 2.Sc7#
- 2.Qd4#
- 1...Sc6
- 2.Se3#
- 2.Sc7#
- 1...g2
- 2.Se3#
- 2.Se7#
- 1...Rxf5!
- threat
- 1.Se6?
- threat
- 2.Sf4#
- 2.S6c7#
- 1...Sc4+
- 2.bxc4#
- 1...f1Q
- 2.S6c7#
- 1...f1R
- 2.S6c7#
- 1...Qc1
- 2.S6c7#
- 2.Rxa5#
- 2.Qd4#
- 1...Rh4
- 2.S6c7#
- 1...Rf5
- 2.S6c7#
- 1...g2!
- threat
- 1.Rxa1?
- threat
- 2.Rd1#
- 2.Rxa5#
- 2.Qd4#
- 1...Sc4+
- 2.bxc4#
- 1...Sxb3
- 2.Qxb3#
- 1...f1Q
- 2.Qd4#
- 1...f1S
- 2.Rxa5#
- 2.Qd4#
- 1...f1B
- 2.Qd4#
- 1...f1R
- 2.Rxa5#
- 2.Qd4#
- 1...Sb7
- 2.Rd1#
- 2.Qd4#
- 1...Se5
- 2.Rxa5#
- 2.Rd4#
- 2.Qd4#
- 1...Sd6
- 2.Sc7#
- 2.Rd1#
- 2.Qd4#
- 1...Sc6!
- threat
- 1.Rea4?
- threat
- 2.Be4#
- 2.Rxa5#
- 1...Sc4+
- 2.bxc4#
- 1...Qxa3
- 2.Be4#
- 2.Qd4#
- 1...Sxb3
- 2.Bxb3#
- 2.Be4#
- 1...f1Q
- 2.Be4#
- 1...f1B
- 2.Be4#
- 1...Qb1
- 2.Rxa5#
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qf1
- 2.Be4#
- 2.Qd4#
- 1...Qh1
- 2.Rxa5#
- 2.Qd4#
- 1...Rh4
- 2.Rxa5#
- 1...Re5
- 2.Rd4#
- 2.Rxa5#
- 1...Sc6
- 2.Be4#
- 1...Sb7
- 2.Be4#
- 1...Sg5
- 2.Rxa5#
- 1...Sd6
- 2.Sc7#
- 1...Qxb2!
- threat
- 1.Rg4?
- threat
- 2.Be4#
- 1...Sc4+
- 2.bxc4#
- 1...Qxb2
- 2.Rxa5#
- 1...Sxb3
- 2.Bxb3#
- 1...Qb1
- 2.Rxa5#
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qh1
- 2.Rxa5#
- 2.Qd4#
- 1...Re5
- 2.Rd4#
- 1...Sd6
- 2.Sc7#
- 1...Sg5!
- threat
- 1.Qc3?
- threat
- 2.Qxa5#
- 2.Qc5#
- 1...Sc4+
- 2.Qxc4#
- 2.bxc4#
- 1...Qxa3
- 2.Qd2#
- 2.Qd4#
- 2.Qd3#
- 1...Sxb3
- 2.Qxb3#
- 2.Qc4#
- 2.Qc6#
- 1...f1Q
- 2.Qc5#
- 1...f1B
- 2.Qc5#
- 1...Qe1
- 2.Rxa5#
- 2.Qd4#
- 2.Qd3#
- 2.Qc5#
- 1...Qf1
- 2.Qd4#
- 2.Qc5#
- 1...Sc6
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Sb7
- 2.Qc4#
- 2.Qc6#
- 1...Sd6
- 2.Sc7#
- 2.Qc5#
- 1...Qxc3!
- threat
- 1.Sf5?
- Keys
- 1.Rf4!
- threat
- 2.Be4#
- 1...Sc4+
- 2.bxc4#
- 1...Qxb2
- 2.Rxa5#
- 1...Sxb3
- 2.Bxb3#
- 1...Qb1
- 2.Rxa5#
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qh1
- 2.Rxa5#
- 2.Qd4#
- 1...Re5
- 2.Rd4#
- 1...Sg5
- 2.Rf5#
- 1...Sd6
- 2.Sc7#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD,P_PINP(D),XQ(A)::R(C),XS(e)
- Q(a);N_GUARD::R(C),XS(e)
- Q(a);N_GUARD::QAR1(A)
- Q(a);N_GUARD,XR(C)::QAR1(A)
- R(g);SBLOCK::R1(E)
- S(e);OGATE,XP(D)::QAB(A),XS(e)
- S(e);CHECK,OGATE::P(D),XS(e)
- S(i);SBLOCK::R1(E)
- S(i);N_GUARD,S_CUTR(g)::R1(E)
- S(i);SBLOCK::S(I)
- Tries
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- Refutation
- R(g);XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- P(b);::S(H)
- R(g);::S(H)
- Refutation
- P(d);
- Try
- R(C);XQ(a)
- Threat
- DUALS(3)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- S(e);OGATE,XP(D)::QAB(A),XS(e)
- P(b);::QAR1(A)
- Refutation
- S(e);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- P(b);::B(B)
- Q(a);N_GUARD::QAR1(A)
- R(g);::R(E),XS(e)
- S(e);::B(B)
- S(i);::R(E),XS(e)
- S(i);SBLOCK::S(I)
- Refutation
- Q(a);P_PINP(D),XQ(A)
- Try
- R(E);
- Threat
- B(B)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- Q(a);N_GUARD,P_PINP(D),XQ(A)::R(C),XS(e)
- S(e);OGATE,XP(D)::B(B),XS(e)
- Q(a);N_GUARD::QAR1(A)
- R(g);SBLOCK::R1(E)
- S(i);SBLOCK::S(I)
- Refutation
- S(i);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(A)
- Refutation
- Q(a);XQ(A)
- Try
- Actual
- R(E);
- Threat
- B(B)
- Vars
- S(e);CHECK,OGATE::P(D),XS(e)
- Q(a);N_GUARD,P_PINP(D),XQ(A)::R(C),XS(e)
- S(e);OGATE,XP(D)::B(B),XS(e)
- Q(a);N_GUARD::QAR1(A)
- R(g);SBLOCK::R1(E)
- S(i);N_GUARD,S_CUTR(g)::R(E)
- S(i);SBLOCK::S(I)
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).