MESON Chess Problem Database
Problem Display
PID: 84502 (8/1N1p2p1/1K4B1/pp1k3N/2RpR2r/1P1Qp1Pb/1br5/q7 w - - 0 1)
Szwedowski, Leopold Mieczyslaw
Szachy, 1968
#2
9 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Rc5#
- 1...Re2
- 2.Rc5#
- 1...Rf2
- 2.Rc5#
- 1...Rg2
- 2.Rc5#
- 1...Rh2
- 2.Rc5#
- 1...Rc3
- 2.Rcxd4#
- 2.Qxd4#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf4
- 2.Sxf4#
- 1...Rg4
- 2.Bf7#
- 1...Bc3
- 2.Rc5#
- 1...Bf1
- 2.Bf7#
- 1...Bg2
- 2.Bf7#
- 1...Bg4
- 2.Sf4#
- 1...Rd2
- Tries
- 1.Rc3?
- threat
- 2.Qxb5#
- 2.Qxd4#
- 1...Rxc3
- 2.Qxd4#
- 1...Rxe4
- 2.Qxe4#
- 1...Bxc3
- 2.Qxb5#
- 1...Qd1
- 2.Qxb5#
- 1...Qf1
- 2.Qxd4#
- 1...Qa3
- 2.Qxd4#
- 1...Rd2
- 2.Rc5#
- 2.Qxb5#
- 1...Ba3
- 2.Qxd4#
- 1...Bf1
- 2.Bf7#
- 2.Qxd4#
- 1...Bf5
- 2.Qxd4#
- 1...b4
- 2.Qc4#
- 2.Qb5#
- 2.Qxd4#
- 1...Qa4!
- threat
- 1.Rxh4?
- threat
- 2.Qe4#
- 1...Ke5
- 2.Qe4#
- 1...Ke6
- 2.Qe4#
- 1...Bg2
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Qh1!
- threat
- 1.Qc3?
- threat
- 2.Rcxd4#
- 2.Rc5#
- 1...Rxc3
- 2.Rcxd4#
- 1...Bxc3
- 2.Rc5#
- 1...dxc3
- 2.Rcd4#
- 2.Rc5#
- 1...bxc4
- 2.bxc4#
- 1...Bf5
- 2.Rcxd4#
- 1...Qa3
- 2.Rcxd4#
- 1...Qd1
- 2.Rc5#
- 1...Qa4
- 2.Rc5#
- 1...Rd2
- 2.Rc5#
- 1...Ba3
- 2.Rcxd4#
- 1...d3
- 2.Rcd4#
- 2.Rc5#
- 2.Re5#
- 1...d6
- 2.Rcxd4#
- 1...Rxe4!
- threat
- 1.gxh4?
- threat
- 2.Sf4#
- 1...Rf2
- 2.Rc5#
- 1...Qf1!
- threat
- 1.g4?
- threat
- 2.Sf4#
- 2.Bf7#
- 1...Rxg4
- 2.Bf7#
- 1...Rxh5
- 2.Bf7#
- 1...Bxg4
- 2.Sf4#
- 1...Rf2
- 2.Rc5#
- 1...Qf1!
- threat
- 1.Rc3?
- Keys
- 1.Rg4!
- threat
- 2.Qe4#
- 2.Qf5#
- 1...Ke5
- 2.Qe4#
- 2.Qf5#
- 1...Ke6
- 2.Qe4#
- 1...Rxg4
- 2.Qf5#
- 1...Rxh5
- 2.Qe4#
- 1...Bxg4
- 2.Qe4#
- 1...Qf1
- 2.Qe4#
- 1...Qh1
- 2.Qf5#
- 1...Rf2
- 2.Qe4#
- 1...Bg2
- 2.Qf5#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(c);N_GUARD::R1(D)
- R(g);OGATE,XR(E)::QAB1(B),XR(g)
- R(g);N_GUARD::S(F),XR(g)
- R(g);S_CUTB(e)::B(H)
- B(b);S_CUTR(c)::R1(D)
- B(e);N_GUARD::B(H)
- B(e);S_CUTR(g)::S(F)
- Tries
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(c);XR(D)::QAR1(B),XP(f)
- R(g);OGATE,XR(E)::QAB1(B),XR(g)
- B(b);XR(D)::QAR2(B),XP(i)
- Q(a);::QAR2(B),XP(i)
- Q(a);::QAR1(B),XP(f)
- B(b);::QAR1(B),XP(f)
- B(e);::QAR1(B),XP(f)
- Refutation
- Q(a);
- Try
- R(E);XR(g)
- Threat
- QAB1(B)
- Vars
- K(j);N_SPINP(f),P-FLIGHT::QAR1(B)
- K(j);N_SPINP(f),S_FLIGHT::QAR2(B)
- B(e);N_GUARD::QAR2(B)
- B(e);N_GUARD::QAR2(B),XB(e)
- Refutation
- Q(a);
- Try
- Q(B);N_PINP(f)
- Threat
- DUALS(2)
- Vars
- R(c);XQ(B)::R1(D),XP(f)
- B(b);XQ(B)::R1(D)
- P(i);OGATE,XR(D)::P(A),XP(i)
- B(e);::R1(D),XP(f)
- Q(a);::R1(D),XP(f)
- Q(a);::R1(D)
- R(c);::R1(D)
- B(b);::R1(D),XP(f)
- P(k);::R1(D),XP(f)
- Refutation
- R(g);XR(E)
- Try
- P(C);XR(g)
- Threat
- S(F)
- Vars
- R(c);N_GUARD::R1(D)
- Refutation
- Q(a);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(g);XP(C)::B(H)
- R(g);XS(F)::B(H)
- B(e);XP(C)::S(F)
- R(c);N_GUARD::R1(D)
- Refutation
- Q(a);
- Try
- Actual
- R(E);
- Threat
- DUALS(2)
- Vars
- K(j);N_SPINP(f),S_FLIGHT::QAR2(B)
- R(g);XR(E)::QAR2(B)
- R(g);XS(F)::QAB1(B)
- B(e);XR(E)::QAB1(B)
- Q(a);::QAB1(B)
- Q(a);::QAR2(B)
- R(c);::QAB1(B)
- B(e);::QAR2(B)
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).