MESON Chess Problem Database
Problem Display
PID: 179175 (8/5p2/Pp1K1P2/P4p2/rR1pkprR/p2p3N/p1b2B2/1B2N3 w - - 0 1)
Rosner, Eugene David
Phenix, 2014
#2
10 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxa5
- 2.Rxd4#
- 1...Rg1
- 2.Rxf4#
- 1...Rg2
- 2.Rxf4#
- 1...Rg3
- 2.Rxf4#
- 1...Rxh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 2.Rxf4#
- 1...Rg6
- 2.Rxf4#
- 1...Rg7
- 2.Rxf4#
- 1...Rg8
- 2.Rxf4#
- 1...Bd1
- 2.Bxd3#
- 1...Bb3
- 2.Bxd3#
- 1...d2
- 2.Bxc2#
- 1...Rxa5
- Tries
- 1.Bxa2?
- threat
- 2.Bd5#
- 1...Rxa5
- 2.Rxd4#
- 1...Bb3!
- threat
- 1.Bxc2?
- threat
- 2.Bxd3#
- 1...Rg3
- 2.Rxf4#
- 1...dxc2!
- threat
- 1.Rh8?
- threat
- 2.Re8#
- 1...Rxa5
- 2.Rxd4#
- 1...Bb3
- 2.Bxd3#
- 1...Rg8!
- threat
- 1.Bxa2?
- Keys
- 1.a7!
- threat
- 2.a8Q#
- 2.a8B#
- 1...Rxb4
- 2.a8Q#
- 2.a8B#
- 1...Rxa5
- 2.Rxd4#
- 1...Rxh4
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Bxb1
- 2.a8Q#
- 2.a8B#
- 1...axb1Q
- 2.a8Q#
- 2.a8B#
- 1...axb1S
- 2.a8Q#
- 2.a8B#
- 1...axb1B
- 2.a8Q#
- 2.a8B#
- 1...axb1R
- 2.a8Q#
- 2.a8B#
- 1...bxa5
- 2.a8Q#
- 2.a8B#
- 1...a1Q
- 2.a8Q#
- 2.a8B#
- 1...a1S
- 2.a8Q#
- 2.a8B#
- 1...a1B
- 2.a8Q#
- 2.a8B#
- 1...a1R
- 2.a8Q#
- 2.a8B#
- 1...Rg1
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg2
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg3
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.Sxg5#
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.Rxf4#
- 2.a8Q#
- 2.a8B#
- 1...Rg8
- 2.Rxf4#
- 1...Bd1
- 2.Bxd3#
- 2.a8Q#
- 2.a8B#
- 1...Bb3
- 2.Bxd3#
- 1...d2
- 2.Bxc2#
- 2.a8Q#
- 2.a8B#
- 1...f3
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.a8Q#
- 2.a8B#
- threat
- 1.a7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(e);N_GUARD,XP(G)::R1(E),XP(f)
- R(i);OGATE::R1(F),XP(h)
- R(i);N_GUARD,XR(F)::S(D)
- R(i);OGATE,P_PINP(J)::R1(F),XP(h)
- B(b);N_SPINP(f),OGATE,P_SPINP(d)::B(A),XP(d)
- P(d);OGATEB,P_SPINB(b)::B(A),XB(b)
- Tries
- Try
- B(A);XP(a)
- Threat
- B(A)
- Vars
- R(e);N_GUARD,XP(G)::R1(E),XP(f)
- Refutation
- B(b);
- Try
- B(A);N_PINP(f),P_PINP(d),XB(b)
- Threat
- B(A),XP(d)
- Vars
- R(i);OGATE::R1(F),XP(h)
- Refutation
- P(d);N_SPINP(d),P_SPINP(f),XB(A)
- Try
- R(F);
- Threat
- R(F)
- Vars
- R(e);N_GUARD,XP(G)::R1(E),XP(f)
- B(b);N_SPINP(f),OGATE,P_SPINP(d)::B(A),XP(d)
- Refutation
- R(i);
- Try
- Actual
- P(H);
- Threat
- P=Q
- Vars
- R(e);N_SPINP(f),XR(E)::P=Q
- R(e);N_GUARD,XP(G)::R1(E),XP(f)
- B(b);XB(A)::P=Q
- P(a);XB(A)::P=Q
- P(k);XP(G)::P=Q
- P(a);::P=Q
- R(i);OGATE::R1(F),XP(h)
- B(b);N_SPINP(f),OGATE,P_SPINP(d)::B(A),XP(d)
- P(h);P_SPINR(i)::P=Q
- P(k);::P=Q
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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