MESON Chess Problem Database
Problem Display
PID: 38491 (2Bn4/1nB1Qp1N/r4p1K/1p1k1p2/7R/1pR1p3/1r2p3/2b2N2 w - - 0 1)
Holladay, Edgar Dinwiddie
HM., Probleemblad, 1955
#2
8 + 13
| 3105 | FIDE Album (1945-1955) | 1964 |
| 6232 | Holladay Chess Problems | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Sxe3#
- 1...Ra1
- 2.Sxf6#
- 1...Ra2
- 2.Sxf6#
- 1...Ra3
- 2.Sxf6#
- 1...Ra4
- 2.Sxf6#
- 1...Ra5
- 2.Sxf6#
- 1...Rc6
- 2.Rd3#
- 1...Ra7
- 2.Sxf6#
- 1...Ra8
- 2.Sxf6#
- 1...Sa5
- 2.Rc5#
- 2.Qc5#
- 1...Sc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Sd6
- 2.Sxf6#
- 1...Sc6
- 2.Sxf6#
- 2.Qxf7#
- 1...Se6
- 2.Sxf6#
- 1...Rd2
- Tries
- 1.Bxf5?
- threat
- 2.Qe4#
- 1...Sc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Ra4
- 2.Sxf6#
- 1...Sd6
- 2.Sxf6#
- 1...Se6
- 2.Sxf6#
- 1...Re6!
- threat
- 1.Be6+?
- 1...Sxe6
- 2.Sxf6#
- 1...fxe6
- 2.Sxf6#
- 1...Rxe6!
- 1...Sxe6
- 1.Bxb7+?
- 1...Rc6
- 2.Sxf6#
- 2.Rd3#
- 2.Rc5#
- 2.Qd6#
- 2.Qd7#
- 1...Sc6
- 2.Sxf6#
- 2.Rd3#
- 2.Rc5#
- 2.Qd6#
- 2.Qd7#
- 2.Qxf7#
- 1...Sxb7!
- 1...Rc6
- 1.Rcc4?
- threat
- 2.Rhd4#
- 1...Sc5
- 2.Rxc5#
- 2.Qxc5#
- 1...f4
- 2.Qe4#
- 1...Rd2
- 2.Sxe3#
- 1...Sc6
- 2.Sxf6#
- 2.Qxf7#
- 1...Se6
- 2.Sxf6#
- 1...bxc4!
- threat
- 1.Qb4?
- threat
- 2.Rd4#
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 1...Sc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Sd6
- 2.Rc5#
- 2.Qc5#
- 2.Qd4#
- 1...Rd2
- 2.Sxe3#
- 2.Qxb3#
- 1...Ra4
- 2.Sxf6#
- 2.Rd4#
- 1...Sc6
- 2.Sxf6#
- 1...Se6
- 2.Sxf6#
- 1...f4!
- threat
- 1.Qxf6?
- threat
- 2.Rd4#
- 1...Rxf6+
- 2.Sxf6#
- 1...Rd2
- 2.Sxe3#
- 1...Ra4
- 2.Qe5#
- 2.Qxf5#
- 1...Sc6
- 2.Qxf7#
- 1...Se6
- 2.Qe5#
- 2.Qxf5#
- 1...f4!
- threat
- 1.Qe6+?
- 1...Sxe6
- 2.Sxf6#
- 1...fxe6
- 2.Sxf6#
- 1...Rxe6!
- 1...Sxe6
- 1.Qd7+?
- 1...Rd6
- 2.Qxf5#
- 1...Sd6!
- 1...Rd6
- 1.Qxf7+?
- 1...Re6
- 2.Sxf6#
- 1...Se6
- 2.Sxf6#
- 1...Sxf7+!
- 1...Re6
- 1.Bxf5?
- Keys
- 1.Qxe3!
- threat
- 2.Rd4#
- 1...Bxe3+
- 2.Sxe3#
- 1...Sc5
- 2.Rxc5#
- 1...Rd2
- 2.Qf3#
- 1...Ra4
- 2.Sxf6#
- 1...Sc6
- 2.Sxf6#
- 1...Se6
- 2.Sxf6#
- 1...f4
- 2.Qd3#
- threat
- 1.Qxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(b);S_CUTB(a)::S(A),XP(e)
- R(i);N_GUARD::S(G),XP(j)
- R(i);SBLOCK::R(B)
- S(k);S_CUTR(i)::S(G),XP(j)
- S(m);S_CUTR(i)::S(G),XP(j)
- Tries
- Try
- B(H);XP(h)
- Threat
- QAB1(F)
- Vars
- R(i);N_GUARD::S(G),XP(j)
- S(k);S_CUTR(i)::S(G),XP(j)
- S(m);S_CUTR(i)::S(G),XP(j)
- Refutation
- R(i);
- Try
- B(H);CHECK
- Vars
- S(m);XB(H)::S(G),XP(j)
- P(l);XB(H)::S(G),XP(j)
- Refutation
- R(i);XB(H)
- Try
- B(H);CHECK,XS(k)
- Refutation
- S(m);XB(H)
- Try
- R(B);
- Threat
- R1(C)
- Vars
- P(h);N_GUARD::QAB1(F)
- R(b);S_CUTB(a)::S(A),XP(e)
- S(m);S_CUTR(i)::S(G),XP(j)
- Refutation
- P(f);XR(B)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(i);::QAR1(F)
- S(m);S_CUTR(i)::S(G),XP(j)
- Refutation
- P(h);
- Try
- Q(F);P_SPINQ(F),XP(j)
- Threat
- R1(C)
- Vars
- R(i);CHECK,XQ(F)::S(G),XR(i)
- R(b);S_CUTB(a)::S(A),XP(e)
- S(m);N_PINQ(F)::QAB(F),XP(l)
- Refutation
- P(h);
- Try
- Q(F);CHECK
- Vars
- S(m);XQ(F)::S(G),XP(j)
- P(l);XQ(F)::S(G),XP(j)
- Refutation
- R(i);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(i);P_SPINR(i)::QAR2(F),XP(h)
- Refutation
- S(k);P_SPINS(k)
- Try
- Q(F);CHECK,XP(l)
- Vars
- R(i);P_SPINR(i)::S(G),XP(j)
- S(m);P_SPINS(m)::S(G),XP(j)
- Refutation
- S(m);CHECK,XQ(F)
- Try
- Actual
- Q(F);P_SPINQ(F),XP(e)
- Threat
- R1(C)
- Vars
- B(a);CHECK,XQ(F)::S(A),XB(a)
- S(k);N_GUARD::R1(B),XS(k)
- R(b);N_PINQ(F)::QAB(F)
- R(i);N_GUARD::S(G),XP(j)
- S(m);S_CUTR(i)::S(G),XP(j)
- P(h);N_PINQ(F)::QAR2(F)
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).