MESON Chess Problem Database
Problem Display
PID: 45265 (8/2N2pK1/2Qp2pB/1N2k3/p3p3/r4R2/b1p5/3rb2B w - - 0 1)
Hirschenson, Aaron
Probleemblad, 2002
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxd6#
- 1...Rb1
- 2.Qxd6#
- 1...Rc1
- 2.Qxd6#
- 1...Rd5
- 2.Qe8#
- 1...Rb3
- 2.Qe8#
- 1...Bd2
- 2.Qxd6#
- 1...Bb1
- 2.Qe8#
- 1...Bd5
- 2.Qxd6#
- 1...d5
- 2.Qe8#
- 2.Qd6#
- 2.Qf6#
- 1...f5
- 2.Bf4#
- 1...Ra1
- Tries
- 1.Rb3?
- threat
- 2.Qxe4#
- 1...Kf5
- 2.Qxe4#
- 1...Rd5
- 2.Qxd5#
- 1...e3
- 2.Qe4#
- 1...d5
- 2.Qf6#
- 1...f5
- 2.Qe8#
- 1...Rd4!
- threat
- 1.Rf5+?
- 1...Kxf5
- 2.Qxe4#
- 1...gxf5!
- 1...Kxf5
- 1.Rf6?
- threat
- 2.Bf4#
- 2.Qxe4#
- 1...c1Q
- 2.Qxe4#
- 1...c1B
- 2.Qxe4#
- 1...Rd4
- 2.Bf4#
- 1...Rd5
- 2.Bf4#
- 2.Qe8#
- 1...Re3
- 2.Bf4#
- 1...Bd2
- 2.Qxe4#
- 2.Qxd6#
- 1...Bg3
- 2.Qxe4#
- 1...Bd5
- 2.Bf4#
- 2.Qxd6#
- 1...e3
- 2.Bf4#
- 2.Qe4#
- 1...d5
- 2.Bf4#
- 2.Qe8#
- 2.Qd6#
- 1...g5
- 2.Qxe4#
- 1...Rf3!
- threat
- 1.Rxf7?
- threat
- 2.Bf4#
- 2.Qxe4#
- 1...Bxf7
- 2.Qxe4#
- 1...c1Q
- 2.Qxe4#
- 1...c1B
- 2.Qxe4#
- 1...Rd4
- 2.Bf4#
- 1...Rd5
- 2.Bf4#
- 2.Qe8#
- 1...Re3
- 2.Bf4#
- 1...Bd2
- 2.Qxe4#
- 2.Qxd6#
- 1...Bg3
- 2.Qxe4#
- 1...Bd5
- 2.Bf4#
- 2.Qxd6#
- 1...e3
- 2.Bf4#
- 2.Qe4#
- 1...d5
- 2.Bf4#
- 2.Qe8#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...g5
- 2.Qxe4#
- 1...Rf3!
- threat
- 1.Rb3?
- Keys
- 1.Rd3!
- threat
- 2.Qxe4#
- 1...Kf5
- 2.Qxe4#
- 1...exd3
- 2.Qe4#
- 1...Bd5
- 2.Qxd5#
- 1...e3
- 2.Qe4#
- 1...d5
- 2.Qf6#
- 1...f5
- 2.Qxd6#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::QAB1(D),XP(i)
- R(a);S_CUTB(c)::QAR(D)
- R(e);S_CUTB(c)::QAR(D)
- B(b);S_CUTR(a)::QAB1(D),XP(i)
- B(c);N_GUARD::QAR(D)
- B(c);S_CUTR(a)::QAB1(D),XP(i)
- P(k);SBLOCK::B(E)
- Tries
- Try
- R(B);
- Threat
- QAR1(D),XP(g)
- Vars
- K(h);P-FLIGHT::QAB1(D),XP(g)
- R(a);N_GUARD::QAR1(D),XR(a)
- P(g);::QAR1(D)
- P(i);OGATE::QAB1(D)
- P(k);SBLOCK::QAR(D)
- Refutation
- R(a);
- Try
- R(B);CHECK
- Vars
- K(h);P-FLIGHT,XR(B)::QAB1(D),XP(g)
- Refutation
- P(j);XR(B)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- P(d);::QAR1(D),XP(g)
- R(a);::B(E)
- R(e);::B(E)
- B(b);::QAR1(D),XP(g)
- P(j);::QAR1(D),XP(g)
- Refutation
- R(e);
- Try
- R(B);XP(k)
- Threat
- DUALS(2)
- Vars
- B(c);XR(B)::QAR1(D),XP(g)
- P(d);::QAR1(D),XP(g)
- R(a);::B(E)
- R(e);::B(E)
- B(b);::QAR1(D),XP(g)
- P(j);::QAR1(D),XP(g)
- Refutation
- R(e);
- Try
- Actual
- R(B);
- Threat
- QAR1(D),XP(g)
- Vars
- K(h);P-FLIGHT::QAB1(D),XP(g)
- P(g);XR(B)::QAR1(D)
- B(c);N_GUARD::QAR1(D),XB(c)
- P(g);::QAR1(D)
- P(i);OGATE::QAB1(D)
- P(k);SBLOCK::QAB1(D),XP(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).