MESON Chess Problem Database
Problem Display
PID: 143595 (4K3/2p1p3/1nPk2p1/N2pn1N1/2pR1Q2/Ppr5/1P1B2B1/8 w - - 0 1)
Tracy, John F
British Chess Magazine, 1896
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Rc1
- Tries
- 1.Kd8?
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Kc5!
- 1...Rc1
- 1.Sf7+?
- 1...Ke6
- 2.Qxe5#
- 1...Kc5!
- 1...Ke6
- 1.Be1?
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Kc5!
- 1...Rc1
- 1.Bxc3?
- threat
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Kc5!
- threat
- 1.Bh1?
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Kc5!
- 1...Rc1
- 1.Bf3?
- 1...Rxf3
- 2.Bb4#
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Kc5!
- 1...Rxf3
- 1.Bh3?
- threat
- 2.Se4#
- 1...Rxh3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Kc5!
- threat
- 1.Be4?
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Qf8#
- 1...Kc5!
- 1...Rc1
- 1.Qh2?
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 1...Kc5!
- 1...Rc1
- 1.Qg3?
- 1...Rxg3
- 2.Bb4#
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Sa4
- 2.Rxd5#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 1...Kc5!
- 1...Rxg3
- 1.a4?
- 1...Sxa4
- 2.Rxd5#
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 1...Rg3
- 2.Bb4#
- 1...Rh3
- 2.Bb4#
- 1...Sd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 2.Qf8#
- 1...Kc5!
- 1...Sxa4
- 1.Kd8?
- Keys
- 1.Qe3!
- 1...Kc5
- 2.Rxd5#
- 1...Rxe3
- 2.Bb4#
- 1...Sxc6
- 2.Sb7#
- 1...Rc1
- 2.Bb4#
- 1...Rc2
- 2.Bb4#
- 1...Rd3
- 2.Bb4#
- 1...Sd3
- 2.Qxe7#
- 1...Sf3
- 2.Qxe7#
- 1...Sg4
- 2.Qxe7#
- 1...Sed7
- 2.Qxe7#
- 1...Sf7
- 2.Qxe7#
- 1...Sa4
- 2.Rxd5#
- 1...Sbd7
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...e6
- 2.Se4#
- 1...Kc5
- 1.Qe3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 3
- Sets
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Tries
- Try
- K(J);P-FLIGHT
- Vars
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- K(g);N_SPINP(d),N_SPINS(e),P-FLIGHT::QAR1(F),XS(e)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(B);
- Vars
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(B);XR(b)
- Threat
- B(B)
- Vars
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(C);
- Vars
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(C);
- Vars
- R(b);OGATE,XB(C)::B(B)
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(C);
- Threat
- S(H)
- Vars
- R(b);OGATE,XB(C)::B(B)
- R(b);OGATE::B(B)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- B(C);
- Vars
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- P(j);OGATEB::QAB(F)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- Q(F);
- Vars
- R(b);OGATE::B(B)
- R(b);N_SPINS(e),OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- P(j);SBLOCK::S(H)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- Q(F);
- Vars
- R(b);N_SPINS(e),OGATE,XQ(F)::B(B)
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- P(j);SBLOCK::S(H)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- P(D);
- Vars
- S(f);N_GUARD,XP(D)::R1(E),XP(d)
- R(b);OGATE::B(B)
- S(f);N_GUARD::R1(E),XP(d)
- Refutation
- K(g);N_SPINP(d),N_SPINS(e),S_FLIGHT
- Try
- Actual
- Q(F);N_PINS(e)
- Vars
- K(g);N_SPINP(d),S_FLIGHT::QAB(F)+R(E),DCHECK,XP(d)
- R(b);OGATE,XQ(F)::B(B)
- S(e);SBLOCK,XP(I)::S(G)
- R(b);OGATE::B(B)
- S(e);OGATE::QAB1(F),XP(j)
- S(f);N_GUARD::R1(E),XP(d)
- P(j);SBLOCK::S(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).