MESON Chess Problem Database
Problem Display
PID: 264457 (8/1P2Npq1/b1N1pr2/6bp/1r2kP2/3Rpp2/3BPR2/3Q1B1K w - - 0 1)
Popa, Nicolae
Sachova skladba, 2021
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rd4#
- 1...Rb2
- 2.Rd4#
- 1...Rb3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Rb5
- 2.Rd4#
- 1...Rb6
- 2.Rd4#
- 1...Rxb7
- 2.Rd4#
- 1...Rxf4
- 2.Rxe3#
- 1...Bxf4
- 2.exf3#
- 1...Bc4
- 2.Rd4#
- 1...exf2
- 2.exf3#
- 1...fxe2
- 2.Rxe3#
- 1...Rb1
- Tries
- 1.Bxe3?
- threat
- 2.exf3#
- 1...Bxd3
- 2.Qxd3#
- 1...fxe2
- 2.Bg2#
- 1...Rxf4!
- threat
- 1.Rxf3?
- threat
- 2.Rdxe3#
- 1...Bxd3
- 2.exd3#
- 1...exd2
- 2.Rde3#
- 1...Rb3
- 2.Rd4#
- 1...Bxf4!
- threat
- 1.b8B?
- threat
- 2.Rxe3#
- 2.exf3#
- 1...Rxb8
- 2.Rd4#
- 1...Rxf4
- 2.Rxe3#
- 1...Bxf4
- 2.exf3#
- 1...Bxd3
- 2.exd3#
- 2.exf3#
- 1...exd2
- 2.exf3#
- 1...exf2
- 2.Re3#
- 2.exf3#
- 1...fxe2
- 2.Rxe3#
- 1...Rb3
- 2.Rd4#
- 2.exf3#
- 1...e5!
- threat
- 1.Bxe3?
- Keys
- 1.b8Q!
- threat
- 2.Rxe3#
- 2.Qe5#
- 2.exf3#
- 1...Rxb8
- 2.Rd4#
- 1...Rxf4
- 2.Rxe3#
- 1...Bxf4
- 2.exf3#
- 1...Bxd3
- 2.Qe5#
- 2.exd3#
- 2.exf3#
- 1...exd2
- 2.Qe5#
- 2.exf3#
- 1...exf2
- 2.Re3#
- 2.Qe5#
- 2.exf3#
- 1...fxe2
- 2.Rxe3#
- 1...e5
- 2.Qxe5#
- 1...Rb3
- 2.Rd4#
- 2.Qe5#
- 2.exf3#
- 1...Rb5
- 2.Rxe3#
- 2.Rd4#
- 2.exf3#
- 1...Rf5
- 2.Rxe3#
- 2.exf3#
- 1...Rg6
- 2.Rxe3#
- 2.exf3#
- 1...Rh6
- 2.Rxe3#
- 2.exf3#
- threat
- 1.b8Q!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD::R1(G)
- R(c);N_GUARD::R1(G),XR(c)
- R(c);N_GUARD,XP(J)::R1(G)
- R(i);SBLOCK,XP(H)::R1(G),XP(a)
- B(e);SBLOCK,XP(H)::P(E),XP(b)
- B(g);S_CUTR(c)::R1(G)
- P(a);XR(F)::P(E),XP(b)
- P(b);XP(E)::R1(G),XP(a)
- Tries
- Try
- B(D);XP(a)
- Threat
- P(E),XP(b)
- Vars
- B(g);OGATE,XR(G)::QAB1(A),XB(g)
- P(b);OGATEB,XP(E)::B(B)
- Refutation
- R(i);XP(H)
- Try
- R(F);XP(b)
- Threat
- R1(G),XP(a)
- Vars
- B(g);OGATE,XR(G)::P(E),XB(g)
- P(a);XB(D)::R1(G)
- R(c);N_GUARD::R1(G)
- Refutation
- B(e);XP(H)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XB(J)::R1(G)
- R(i);XP(H)::R1(G),XP(a)
- B(e);XP(H)::P(E),XP(b)
- P(a);XB(D)::P(E),XP(b)
- P(b);XP(E)::R1(G),XP(a)
- Refutation
- P(h);
- Try
- Actual
- P(J);
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD,XQ(J)::R1(G)
- R(i);XP(H)::R1(G),XP(a)
- B(e);XP(H)::P(E),XP(b)
- P(b);XP(E)::R1(G),XP(a)
- P(h);::QAR1(J),XP(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).