MESON Chess Problem Database
Problem Display
PID: 132087 (1N6/1p2p3/NP1kp1nR/2R2bB1/4pPp1/p3P1K1/B7/8 w - - 0 1)
Bonavia-Hunt, Rev Noel Aubrey
The Field, 1955
(First published on Mon Sep 19 1955)
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sxf4
- 2.Bxf4#
- 1...Sh4
- 2.Rd5#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...bxa6
- 2.Rc6#
- 1...Sxf4
- Tries
- 1.Kf2?
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Sh4
- 2.Rd5#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...g3+!
- 1...Sxf4
- 1.Kh2?
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Sh4
- 2.Rd5#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...g3+!
- 1...Sxf4
- 1.Bb3?
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Sh4
- 2.Rd5#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...a2!
- 1...Sxf4
- 1.Bc4?
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Sh4
- 2.Rd5#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...a2!
- 1...Sxf4
- 1.Bh4?
- 1...Sxh4
- 2.Rd5#
- 1...bxa6
- 2.Rc6#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Bf6?
- 1...Sxf4
- 2.Be5#
- 1...bxa6
- 2.Rc6#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 2.fxe5#
- 1...Sf8
- 2.Be5#
- 1...Sh8
- 2.Be5#
- 1...e5
- 2.Bxe5#
- 1...exf6!
- 1...Sxf4
- 1.Rc1?
- threat
- 2.Rd1#
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Se5!
- threat
- 1.Rc2?
- threat
- 2.Rd2#
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Se5!
- threat
- 1.Ra5?
- 1...Sxf4
- 2.Bxf4#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sh4
- 2.Rd5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...bxa6!
- 1...Sxf4
- 1.Rb5?
- 1...Sxf4
- 2.Bxf4#
- 1...Se5
- 2.Rd5#
- 2.fxe5#
- 1...Sh4
- 2.Rd5#
- 1...Sf8
- 2.Rd5#
- 1...Sh8
- 2.Rd5#
- 1...e5
- 2.fxe5#
- 1...bxa6!
- 1...Sxf4
- 1.Rh1?
- threat
- 2.Rd1#
- 1...bxa6
- 2.Rc6#
- 1...Se5
- 2.fxe5#
- 1...Sxf4!
- threat
- 1.Rh2?
- threat
- 2.Rd2#
- 1...bxa6
- 2.Rc6#
- 1...Se5
- 2.fxe5#
- 1...Sxf4!
- threat
- 1.Rh7?
- 1...Sxf4
- 2.Bxe7#
- 1...bxa6
- 2.Rc6#
- 1...Se5
- 2.Bxe7#
- 2.fxe5#
- 1...Sh4
- 2.Bxe7#
- 1...Sf8
- 2.Bxe7#
- 1...Sh8
- 2.Bxe7#
- 1...e5!
- 1...Sxf4
- 1.Kf2?
- Keys
- 1.Rc7!
- threat
- 2.Rd7#
- 1...Sxf4
- 2.Bxf4#
- 1...bxa6
- 2.Rc6#
- 1...Se5
- 2.Bxe7#
- 1...Sf8
- 2.Bxe7#
- 1...e5
- 2.Bxe7#
- threat
- 1.Rc7!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- P(h);N_GUARD,XS(G)::R1(E)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(c);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(c);CHECK
- Try
- B(A);
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(a);
- Try
- B(F);
- Vars
- S(g);P_SPINP(f),XB(F)::R1(E)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- S(g);P_SPINP(f),XP(D)
- Try
- B(F);
- Vars
- S(g);N_GUARD,XP(D)::B(F)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);N_GUARD::B(F)
- P(f);S_CUTS(g)::B(F),XP(f)
- Refutation
- P(i);XB(F)
- Try
- R(E);
- Threat
- R(E)
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- Refutation
- S(g);P_SPINP(f)
- Try
- R(E);
- Threat
- R(E)
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- Refutation
- S(g);P_SPINP(f)
- Try
- R(E);
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(h);XS(G)
- Try
- R(E);
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- S(g);P_SPINP(f)::R1(E)
- P(f);OGATE,P_SPINS(g)::P(D),XP(f)
- Refutation
- P(h);XS(G)
- Try
- R(I);
- Threat
- R(I)
- Vars
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);OGATE::P(D),XS(g)
- Refutation
- S(g);XP(D)
- Try
- R(I);
- Threat
- R(I)
- Vars
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);OGATE::P(D),XS(g)
- Refutation
- S(g);XP(D)
- Try
- R(I);
- Vars
- S(g);N_GUARD,XP(D)::B(F),XP(i)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);N_GUARD::B(F),XP(i)
- Refutation
- P(f);
- Try
- Actual
- R(E);
- Threat
- R1(E)
- Vars
- S(g);OGATE,P_SPINP(f),XP(D)::B(F),XS(g)
- P(h);N_GUARD,XS(G)::R1(E)
- S(g);N_GUARD,P_SPINP(f)::B(F),XP(i)
- P(f);P_SPINS(g)::B(F),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).