MESON Chess Problem Database
Problem Display
PID: 722 (2Nn1B2/8/2r1PR2/1Qpkp3/2R5/1KPr4/2Bpb3/3Nn3 w - - 0 1)
Hassberg, Eric Manfred
HM., British Chess Magazine, 1943
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxc3+
- 2.Sxc3#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 1...Rd6
- 2.Se7#
- 2.Qxc5#
- 1...Rxe6
- 2.Qxc5#
- 1...Rc7
- 2.Sb6#
- 1...Rxc8
- 2.Qd7#
- 1...Rxc3+
- Tries
- 1.Bxc5?
- threat
- 2.Se7#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxc5
- 2.Qd7#
- 2.Qxc5#
- 1...Rxe6
- 2.Bg1#
- 2.Bf2#
- 2.Ba3#
- 2.Be3#
- 2.Bb4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 2.Bf8#
- 1...Rxc8
- 2.Qd7#
- 1...Rc7
- 2.Sb6#
- 1...e4!
- threat
- 1.Ra4?
- threat
- 2.Qc4#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxe6
- 2.Qxc5#
- 1...Rxc8
- 2.Qd7#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 1...Rd6
- 2.Se7#
- 1...Rc7
- 2.Sb6#
- 1...e4!
- threat
- 1.Rb4?
- threat
- 2.Qc4#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxe6
- 2.Qxc5#
- 1...Rxc8
- 2.Qd7#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 2.Qxc5#
- 1...Rd6
- 2.Se7#
- 1...Rc7
- 2.Sb6#
- 1...e4!
- threat
- 1.Rd4+?
- 1...Rxd4
- 2.Se3#
- 1...exd4!
- 1...Rxd4
- 1.Rcf4?
- threat
- 2.Qc4#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxe6
- 2.Qxc5#
- 1...Rxc8
- 2.Qd7#
- 1...e4
- 2.R4f5#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 1...Rd6
- 2.Se7#
- 1...Rc7
- 2.Sb6#
- 1...exf4!
- threat
- 1.Rh4?
- threat
- 2.Qc4#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxe6
- 2.Qxc5#
- 1...Rxc8
- 2.Qd7#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 1...Rd6
- 2.Se7#
- 1...Rc7
- 2.Sb6#
- 1...e4!
- threat
- 1.Rxc5+?
- 1...Ke4
- 2.Rxe5#
- 2.Qa4#
- 2.Qc4#
- 2.Qb4#
- 1...Rxc5!
- 1...Ke4
- 1.Qxc6+?
- 1...Sxc6
- 2.Sb6#
- 1...Kxc6!
- 1...Sxc6
- 1.Qb7?
- threat
- 2.Sb6#
- 1...Rxc3+
- 2.Sxc3#
- 1...e4
- 2.Rxc5#
- 1...Sxb7!
- threat
- 1.Bxc5?
- Keys
- 1.Rg4!
- threat
- 2.Qc4#
- 1...Rxc3+
- 2.Sxc3#
- 1...Rxe6
- 2.Qxc5#
- 1...Rxc8
- 2.Qd7#
- 1...e4
- 2.Rg5#
- 1...Re3
- 2.Sxe3#
- 1...Rf3
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rd4
- 2.Se3#
- 1...Ra6
- 2.Qxc5#
- 1...Rb6
- 2.Sxb6#
- 1...Rd6
- 2.Se7#
- 1...Rc7
- 2.Sb6#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);N_GUARD,P_PINQ(F)::S(I),XR(h)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);N_GUARD::S(I)
- R(h);OGATE,XS(I)::QAR2(F)
- Tries
- Try
- B(J);XP(e)
- Threat
- S(I)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);OGATE,XS(I)::QAR2(F)
- R(h);N_GUARD::S(I)
- Refutation
- P(g);
- Try
- R(E);
- Threat
- QAB1(F)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);OGATE,XS(I)::QAR2(F)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);N_GUARD,P_PINQ(F)::S(I),XR(h)
- R(h);SBLOCK::S(I)
- R(h);N_GUARD::S(I)
- Refutation
- P(g);
- Try
- R(E);
- Threat
- QAB1(F)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);OGATE,XS(I)::QAR2(F)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);SBLOCK::S(I)
- R(h);N_GUARD::S(I)
- Refutation
- P(g);
- Try
- R(E);CHECK
- Vars
- R(d);N_PINP(D),XR(E)::S(A)
- Refutation
- P(g);XR(E)
- Try
- R(E);
- Threat
- QAB1(F)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);OGATE,XS(I)::QAR2(F)
- P(g);OGATEB,SBLOCK::R(E)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);N_GUARD,P_PINQ(F)::S(I),XR(h)
- R(h);SBLOCK::S(I)
- R(h);N_GUARD::S(I)
- Refutation
- P(g);XR(E)
- Try
- R(E);
- Threat
- QAB1(F)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);OGATE,XS(I)::QAR2(F)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);N_GUARD,P_PINQ(F)::S(I),XR(h)
- R(h);SBLOCK::S(I)
- R(h);N_GUARD::S(I)
- Refutation
- P(g);
- Try
- R(E);CHECK,XP(e)
- Refutation
- R(h);P_SPINR(h),XR(E)
- Try
- Q(F);CHECK,N_PINP(e),XR(h)
- Vars
- S(i);SBLOCK,XQ(F)::S(I)
- Refutation
- K(f);P_SPINP(e),S_FLIGHT,XQ(F)
- Try
- Q(F);N_PINP(e),P_PINR(h)
- Threat
- S(I)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- P(g);SBLOCK::R1(E),XP(e)
- Refutation
- S(i);N_SPINR(h),XQ(F)
- Try
- Actual
- R(E);
- Threat
- QAB1(F)
- Vars
- R(d);CHECK,XP(D)::S(A),XR(d)
- R(h);N_GUARD,XP(G)::QAR1(F),XP(e)
- R(h);OGATE,XS(I)::QAR2(F)
- P(g);OGATEB,SBLOCK::R(E)
- R(d);N_GUARD::S(A),XR(d)
- R(d);OGATE::B(B)
- R(d);N_GUARD,N_PINP(D)::S(A)
- R(h);N_GUARD::QAR1(F),XP(e)
- R(h);N_GUARD,P_PINQ(F)::S(I),XR(h)
- R(h);SBLOCK::S(I)
- R(h);N_GUARD::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).