MESON Chess Problem Database
Problem Display
PID: 225390 (8/1K6/N3p3/2p1r3/1p1kpQ2/1prpNP2/1P1RP3/8 w - - 0 1)
Beszczynski, Jan
Praca, 1957
#2
8 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...Rc1
- Tries
- 1.Kb6?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Kc6?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Ka7?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Kc7?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Ka8?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Kb8?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.Kc8?
- 1...Rc1
- 2.Rxd3#
- 1...Rc2
- 2.Rxd3#
- 1...Rc4
- 2.Rxd3#
- 1...Rd5
- 2.Qxe4#
- 1...Rf5
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rh5
- 2.Qxe4#
- 1...c4!
- 1...Rc1
- 1.bxc3+?
- 1...bxc3
- 2.Rxd3#
- 1...Kxc3!
- 1...bxc3
- 1.Kb6?
- Keys
- 1.Sxc5!
- 1...Kxc5
- 2.Qxe5#
- 1...Rcxc5
- 2.Rxd3#
- 1...Rexc5
- 2.Qxe4#
- 1...Rc1
- 2.Sxb3#
- 1...Rc2
- 2.Sxb3#
- 1...Rc4
- 2.Sxb3#
- 1...Rd5
- 2.Sxe6#
- 1...Rf5
- 2.Sxe6#
- 1...Rg5
- 2.Sxe6#
- 1...Rh5
- 2.Sxe6#
- 1...Kxc5
- 1.Sxc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);S_FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);P-FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);P-FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);S_FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);P-FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- K(H);S_FLIGHT
- Vars
- R(b);N_GUARD::R1(B),XP(c)
- R(h);N_GUARD::QAR1(F),XP(f)
- Refutation
- P(g);
- Try
- P(A);CHECK,XR(b)
- Vars
- P(d);XP(A)::R1(B),XP(c)
- Refutation
- K(e);N_SPINP(c),S_FLIGHT,XP(A)
- Try
- Actual
- S(G);XP(g)
- Vars
- K(e);N_SPINP(c),S_FLIGHT,XS(G)::QAR2(F),XR(h)
- R(b);N_GUARD,SBLOCK,XS(G)::R1(B),XP(c)
- R(h);N_GUARD,SBLOCK,XS(G)::QAR1(F),XP(f)
- R(b);N_GUARD::S(G),XP(a)
- R(h);N_GUARD::S(G),XP(i)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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