MESON Chess Problem Database
Problem Display
PID: 239966 (R2Q4/8/1p6/7r/N7/k4bbR/5nq1/K1NnB3 w - - 0 1)
Kipping, Cyril Stanley
Parallele 50, 1948
#2
7 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Sc5#
- 1...Bd5
- 2.Qe7#
- 2.Qd6#
- 2.Qf8#
- 1...Bh2
- 2.Sc5#
- 1...Bf4
- 2.Sc5#
- 1...Bh4
- 2.Sc5#
- 1...Be5+
- 2.Sb2#
- 1...Bd6
- 2.Sc5#
- 1...Bc7
- 2.Sc5#
- 1...Se4
- 2.Sc5#
- 1...Rd5
- Tries
- 1.Sxb6+?
- 1...Ra5
- 2.Rxa5#
- 1...Bxa8!
- 1...Ra5
- 1.Qxb6?
- threat
- 2.Bb4#
- 2.Qb3#
- 2.Qb4#
- 1...Be5+
- 2.Sb2#
- 1...Bxa8
- 2.Qb3#
- 2.Qb4#
- 1...Ra5
- 2.Qb3#
- 2.Qb4#
- 1...Rh4
- 2.Qb3#
- 1...Bd5
- 2.Bb4#
- 2.Qc5#
- 2.Qb4#
- 2.Qd6#
- 1...Bd6
- 2.Sc5#
- 2.Qb3#
- 1...Sc3
- 2.Qb2#
- 2.Qb3#
- 1...Sd3
- 2.Qb3#
- 1...Rb5!
- threat
- 1.Qe7+?
- 1...Bd6
- 2.Sc5#
- 1...Rc5!
- 1...Bd6
- 1.Qd2?
- threat
- 2.Qb4#
- 2.Qa2#
- 1...Be5+
- 2.Sb2#
- 1...Sxh3
- 2.Qb4#
- 1...Sc3
- 2.Qxc3#
- 2.Qb2#
- 1...Rh4
- 2.Qa2#
- 1...Rb5
- 2.Qa2#
- 1...Bd5
- 2.Qb4#
- 1...Bd6
- 2.Sc5#
- 2.Qa2#
- 1...Sb2
- 2.Qc3#
- 2.Qb4#
- 2.Qxb2#
- 1...Sh1
- 2.Qb4#
- 1...Se4
- 2.Sc5#
- 2.Qb4#
- 1...Sg4
- 2.Qb4#
- 1...Sd3!
- threat
- 1.Qd3+?
- 1...Sc3
- 2.Qxc3#
- 1...Sxd3!
- 1...Sc3
- 1.Qd5?
- threat
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qa2#
- 2.Qb3#
- 1...Be5+
- 2.Sb2#
- 1...Rxd5
- 2.Sc5#
- 1...Sxh3
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qb3#
- 1...Sc3
- 2.Qb3#
- 1...Qf1
- 2.Qa2#
- 2.Qb3#
- 1...Rh4
- 2.Qa2#
- 2.Qb3#
- 1...Rh7
- 2.Qa2#
- 2.Qb3#
- 1...Rh8
- 2.Qa2#
- 2.Qb3#
- 1...Be2
- 2.Qa2#
- 2.Qb3#
- 1...Bb8
- 2.Qa2#
- 2.Qb3#
- 1...Sb2
- 2.Sxb2#
- 2.Qa2#
- 2.Qb3#
- 1...Sh1
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qb3#
- 1...Sd3
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qb3#
- 1...Se4
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qb3#
- 1...Sg4
- 2.Sb2#
- 2.Sc5#
- 2.Sxb6#
- 2.Qb3#
- 1...b5
- 2.Sb2#
- 2.Sc5#
- 2.Sb6#
- 2.Qa2#
- 2.Qb3#
- 1...Bxd5!
- threat
- 1.Qd6+?
- 1...Bxd6
- 2.Sc5#
- 1...Rc5!
- 1...Bxd6
- 1.Qf8+?
- 1...Bd6
- 2.Sc5#
- 1...Rc5!
- 1...Bd6
- 1.Sxb6+?
- Keys
- 1.Qg8!
- threat
- 2.Qa2#
- 2.Qb3#
- 1...Be5+
- 2.Sb2#
- 1...Sxh3
- 2.Qb3#
- 1...Sc3
- 2.Qb3#
- 1...Rb5
- 2.Qa2#
- 1...Rd5
- 2.Sc5#
- 1...Bd5
- 2.Qf8#
- 1...Sh1
- 2.Qb3#
- 1...Sd3
- 2.Qb3#
- 1...Se4
- 2.Sc5#
- 2.Qb3#
- 1...Sg4
- 2.Qb3#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 6
- Sets
- R(g);S_CUTB(e)::R(F)+S(E)
- B(f);P_SPINB(e)::R(F)+S(E)
- B(f);CHECK,P_SPINB(e),S_CUTR(g)::R(F)+S(E)
- S(b);S_CUTB(e)::R(F)+S(E)
- Tries
- Try
- S(E);CHECK,XP(h)
- Vars
- R(g);N_GUARD,P_SPINR(g)::R(F),XR(g)
- Refutation
- B(e);P_SPINB(f),XR(F)
- Try
- Q(G);XP(h)
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,P_SPINB(e),S_CUTR(g)::R(F)+S(E)
- R(g);::QAR1(G)
- S(b);::QAR1(G)
- Refutation
- R(g);
- Try
- Q(G);CHECK
- Vars
- B(f);P_SPINB(e)::R(F)+S(E)
- Refutation
- R(g);P_SPINR(g)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,P_SPINB(e),S_CUTR(g)::R(F)+S(E)
- S(b);SBLOCK,XR(D)::QAB1(G)
- R(g);::QAR1(G)
- B(e);P_SPINB(f)::QAB1(G)
- S(b);::QAB1(G)
- Refutation
- S(b);
- Try
- Q(G);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(G),XS(a)
- Refutation
- S(b);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(5)
- Vars
- B(f);CHECK,P_SPINB(e)::R(F)+S(E)
- R(g);XQ(G)::R(F)+S(E)
- S(a);::QAR1(G)
- Refutation
- B(e);P_SPINB(f),XQ(G)
- Try
- Q(G);CHECK
- Vars
- B(f);P_SPINB(e),XQ(G)::R(F)+S(E)
- Refutation
- R(g);P_SPINR(g)
- Try
- Q(G);CHECK
- Vars
- B(f);P_SPINB(e)::R(F)+S(E)
- Refutation
- R(g);P_SPINR(g)
- Try
- Actual
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,P_SPINB(e),S_CUTR(g)::R(F)+S(E)
- S(b);SBLOCK,XR(D)::QAR1(G)
- S(a);::QAR1(G)
- R(g);::QAR1(G)
- R(g);S_CUTB(e)::R(F)+S(E)
- B(e);P_SPINB(f),S_CUTR(g)::QAB(G)
- S(b);::QAR1(G)
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).