MESON Chess Problem Database
Problem Display
PID: 248191 (B7/bR2R3/8/q2n1N2/2p4K/5kP1/5P2/nN3Q2 w - - 0 1)
de Blasio, Francis JC
Christian Science Monitor, 1953
(First published on Sat Jan 31 1953)
#2
9 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Sxd2#
- 1...Qb6
- 2.Sd2#
- 1...Qc7
- 2.Sd2#
- 1...Qd8
- 2.Sd2#
- 1...Qa3
- 2.Sd2#
- 1...Qa4
- 2.Sd2#
- 1...Qb5
- 2.Sd2#
- 1...Qc5
- 2.Sd2#
- 1...Qa6
- 2.Sd2#
- 1...Bxf2
- 2.Sd4#
- 2.Qh1#
- 1...Be3
- 2.fxe3#
- 1...Bd4
- 2.Sxd4#
- 1...Bb8
- 2.Sd4#
- 1...Sc3
- 2.Sd2#
- 1...Se3
- 2.fxe3#
- 1...Sb4
- 2.Sd2#
- 1...Sf4
- 2.Rb3#
- 1...Sb6
- 2.Sd4#
- 2.Re3#
- 1...Sf6
- 2.Rb3#
- 1...Sc7
- 2.Rb3#
- 1...Sxe7
- 2.Rb3#
- 1...Qd2
- Tries
- 1.Kh3?
- threat
- 2.Sh4#
- 2.Qe2#
- 2.Qg2#
- 1...Sxe7
- 2.Rb3#
- 1...Qe1
- 2.Sh4#
- 2.Qg2#
- 1...Qd2
- 2.Sxd2#
- 2.Sh4#
- 2.Qg2#
- 1...Qa2
- 2.Sh4#
- 2.Qg2#
- 1...Be3
- 2.Sh4#
- 2.fxe3#
- 1...Sc3
- 2.Sd2#
- 2.Sh4#
- 2.Qg2#
- 1...Se3
- 2.Sh4#
- 2.fxe3#
- 1...Sf4+!
- threat
- 1.Rb4?
- threat
- 2.Sd2#
- 1...Qxb4
- 2.Bxd5#
- 1...Qa2
- 2.Bxd5#
- 1...Be3
- 2.Rxe3#
- 2.fxe3#
- 1...c3
- 2.Rf4#
- 1...Sb3!
- threat
- 1.Rb5?
- threat
- 2.Bxd5#
- 1...Qxb5
- 2.Sd2#
- 1...Qd2
- 2.Sxd2#
- 1...Qd8
- 2.Sd2#
- 1...Qe1!
- threat
- 1.Rxa7?
- threat
- 2.Sd4#
- 2.Re3#
- 1...Qxa7
- 2.Sd2#
- 2.Bxd5#
- 1...Qe1
- 2.Sd4#
- 1...Qd2
- 2.Sxd2#
- 1...Qc3
- 2.Bxd5#
- 1...Qb6
- 2.Sd2#
- 2.Bxd5#
- 1...Qd8
- 2.Sd2#
- 2.Sd4#
- 1...Qa3
- 2.Sd2#
- 2.Sd4#
- 2.Bxd5#
- 1...Qc5
- 2.Sd2#
- 1...Sb3
- 2.Re3#
- 1...Sc2!
- threat
- 1.Kh3?
- Keys
- 1.Kg5!
- threat
- 2.Sh4#
- 1...Qd2+
- 2.Sxd2#
- 1...Be3+
- 2.fxe3#
- 1...Bxf2
- 2.Qh1#
- 1...Sxe7
- 2.Rb3#
- 1...Sc3
- 2.Sd2#
- 1...Se3
- 2.fxe3#
- 1...Sb4
- 2.Sd2#
- 1...Sf4
- 2.Rb3#
- 1...Sb6
- 2.Re3#
- 1...Sf6
- 2.Rb3#
- 1...Sc7
- 2.Rb3#
- threat
- 1.Kg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD::S(A)
- Q(d);N_GUARD,P_PINR(H)::S(A)
- B(f);OGATE::QAR(B)+P(C),XB(f)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- S(e);S_CUTQ(d)::S(A)
- S(e);OGATE::QAR(B)+P(C),XS(e)
- S(e);::B(I)+R(G),DCHECK
- S(e);XR(H)::B(I)+R(G),DCHECK
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- DUALS(3)
- Vars
- S(e);XR(H)::B(I)+R(G),DCHECK
- Refutation
- S(e);CHECK
- Try
- R(G);P_PINS(e)
- Threat
- S(A)
- Vars
- Q(d);N_GUARD,XR(G)::B(I),XS(e)
- Q(d);N_GUARD::B(I),XS(e)
- P(c);OGATE::R1(G)
- Refutation
- S(a);
- Try
- R(G);P_PINS(e)
- Threat
- B(I),XS(e)
- Vars
- Q(d);N_GUARD,XR(G)::S(A)
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD,P_PINR(H)::S(A)
- Refutation
- Q(d);
- Try
- R(G);P_PINS(e),XB(f)
- Threat
- DUALS(2)
- Vars
- Q(d);::S(F)
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD::B(I),XS(e)
- Q(d);N_GUARD::S(A)
- S(a);::R1(H)
- Refutation
- S(a);
- Try
- Actual
- K(E);S_FLIGHT
- Threat
- S(F)
- Vars
- Q(d);CHECK,N_GUARD::S(A),XQ(d)
- B(f);CHECK,OGATE::QAR(B)+P(C),XB(f)
- B(f);P_SPINB(f),SBLOCK,XP(C)::QAB(B)
- S(e);P_PINS(F),XR(H)::B(I)+R(G),DCHECK
- S(e);P_PINS(F),S_CUTQ(d)::S(A)
- S(e);OGATE,P_PINS(F)::QAR(B)+P(C),XS(e)
- S(e);P_PINS(F)::B(I)+R(G),DCHECK
- S(e);N_GUARD,P_PINS(F),S_CUTB(f)::R1(H)
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).