MESON Chess Problem Database
Problem Display
PID: 151642 (2N4B/2Rn1p1R/4p3/3k4/p2Pr3/5Q2/1PNbnp2/K4B2 w - - 0 1)
Bettmann, Henry Wald
The Problem, 1914
#2
10 + 9
| 133 | The Problemist Supplement | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sb4#
- 1...Be1
- 2.Se3#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 2.Sb4#
- 1...Bb4
- 2.Se3#
- 2.Sxb4#
- 1...Bf4
- 2.Sb4#
- 1...Ba5
- 2.Se3#
- 1...Bg5
- 2.Sb4#
- 1...Bh6
- 2.Sb4#
- 1...Sc1
- 2.Bc4#
- 1...Sg1
- 2.Bc4#
- 1...Sc3
- 2.Sb4#
- 2.Bc4#
- 1...Sg3
- 2.Bc4#
- 1...Sxd4
- 2.Bc4#
- 1...Sf4
- 2.Bc4#
- 1...Sc5
- 2.Rxc5#
- 1...Se5
- 2.Rc5#
- 1...Sb6
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Sf8
- 2.Rc5#
- 1...a3
- 2.Qb3#
- 1...e5
- 2.Qxf7#
- 1...f5
- 2.Rhxd7#
- 1...f6
- 2.Rhxd7#
- 1...Bc1
- Tries
- 1.Kb1?
- 1...Sxd4
- 2.Bc4#
- 1...Sc5
- 2.Rxc5#
- 1...e5
- 2.Qxf7#
- 1...Bc1
- 2.Sb4#
- 1...Be1
- 2.Se3#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 2.Sb4#
- 1...Bb4
- 2.Se3#
- 2.Sxb4#
- 1...Bf4
- 2.Sb4#
- 1...Ba5
- 2.Se3#
- 1...Bg5
- 2.Sb4#
- 1...Bh6
- 2.Sb4#
- 1...Sc1
- 2.Bc4#
- 1...Sg1
- 2.Bc4#
- 1...Sg3
- 2.Bc4#
- 1...Sf4
- 2.Bc4#
- 1...Se5
- 2.Rc5#
- 1...Sb6
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Sf8
- 2.Rc5#
- 1...a3
- 2.Qb3#
- 1...f5
- 2.Rhxd7#
- 1...f6
- 2.Rhxd7#
- 1...Sc3+!
- 1...Sxd4
- 1.Be5?
- threat
- 2.Se7#
- 1...Sxe5
- 2.Rc5#
- 1...Sc5
- 2.Sb6#
- 2.Rxc5#
- 1...Bb4
- 2.Se3#
- 2.Sxb4#
- 1...Bg5
- 2.Sb4#
- 1...Sxd4!
- threat
- 1.Bf6?
- 1...Sxd4
- 2.Bc4#
- 1...Sxf6
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Bc1
- 2.Sb4#
- 1...Be1
- 2.Se3#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 2.Sb4#
- 1...Bb4
- 2.Se3#
- 2.Sxb4#
- 1...Bf4
- 2.Sb4#
- 1...Ba5
- 2.Se3#
- 1...Bg5
- 2.Sb4#
- 1...Bh6
- 2.Sb4#
- 1...Sc1
- 2.Bc4#
- 1...Sg1
- 2.Bc4#
- 1...Sc3
- 2.Sb4#
- 2.Bc4#
- 1...Sg3
- 2.Bc4#
- 1...Sf4
- 2.Bc4#
- 1...Se5
- 2.Rc5#
- 1...Sb6
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Sf8
- 2.Rc5#
- 1...a3
- 2.Qb3#
- 1...e5!
- 1...Sxd4
- 1.Rc3?
- threat
- 2.Sb4#
- 1...e5
- 2.Qxf7#
- 1...Se5
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...f6
- 2.Rxd7#
- 1...Bxc3!
- threat
- 1.Rc6?
- threat
- 2.Se7#
- 1...Sc5
- 2.Rxc5#
- 1...Bb4
- 2.Sxb4#
- 1...Bg5
- 2.Sb4#
- 1...Kxc6!
- threat
- 1.Rh4?
- threat
- 2.Qxe4#
- 1...Sc5
- 2.Rxc5#
- 1...e5
- 2.Qxf7#
- 1...Bf4
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 2.Bc4#
- 1...Sg3
- 2.Bc4#
- 1...Sf4
- 2.Bc4#
- 1...Sf6
- 2.Rc5#
- 1...f5!
- threat
- 1.Rh5+?
- 1...Bg5
- 2.Se3#
- 2.Sb4#
- 1...Se5
- 2.Rxe5#
- 2.Rc5#
- 1...e5
- 2.Qxf7#
- 1...f5!
- 1...Bg5
- 1.Rxf7?
- threat
- 2.Rfxd7#
- 1...Sc5
- 2.Rxc5#
- 1...Bb4
- 2.Se3#
- 2.Sxb4#
- 1...Bf4
- 2.Sb4#
- 1...Se5
- 2.Rc5#
- 1...Sb6
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Sf8
- 2.Rc5#
- 1...e5!
- threat
- 1.Qc3?
- threat
- 2.Sb4#
- 2.Rxd7#
- 2.Qc4#
- 2.Qc6#
- 1...Rxd4
- 2.Qc6#
- 1...Sxc3
- 2.Sb4#
- 2.Bc4#
- 1...Sxd4
- 2.Sb4#
- 2.Bc4#
- 2.Rxd7#
- 2.Qc4#
- 1...Re3
- 2.Qc6#
- 1...Rf4
- 2.Qc6#
- 1...Rg4
- 2.Qc6#
- 1...Rh4
- 2.Qc6#
- 1...Re5
- 2.Qc6#
- 1...e5
- 2.Qc4#
- 2.Qc6#
- 1...Bf4
- 2.Sb4#
- 2.Qc4#
- 2.Qc6#
- 1...Sc5
- 2.Sb4#
- 2.Rxc5#
- 2.Qxc5#
- 1...Se5
- 2.Sb4#
- 2.Rc5#
- 2.Qc5#
- 1...Sb6
- 2.Sb4#
- 2.Rc5#
- 2.Qc5#
- 2.Qc6#
- 1...Sf6
- 2.Sb4#
- 2.Rc5#
- 2.Qc4#
- 2.Qc5#
- 2.Qc6#
- 1...Sb8
- 2.Sb4#
- 2.Rc5#
- 2.Qc4#
- 2.Qc5#
- 1...Sf8
- 2.Sb4#
- 2.Rc5#
- 2.Qc4#
- 2.Qc5#
- 2.Qc6#
- 1...Bxc3!
- threat
- 1.Qf5+?
- 1...Re5
- 2.Bg2#
- 1...Se5
- 2.Rc5#
- 1...e5
- 2.Qxd7#
- 2.Qxf7#
- 1...exf5!
- 1...Re5
- 1.Kb1?
- Keys
- 1.Qh5+!
- 1...Re5
- 2.Bg2#
- 1...Bg5
- 2.Sb4#
- 1...Se5
- 2.Rc5#
- 1...e5
- 2.Qxf7#
- 1...f5
- 2.Rhxd7#
- 1...Re5
- 1.Qh5+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 18
- Sets
- B(a);N_GUARD::S(D)
- B(a);N_GUARD,P_PINP(C)::S(D)
- S(b);OGATE::B(B)
- S(b);OGATE,XP(F)::B(B)
- S(h);N_GUARD::R1(G),XS(h)
- S(h);N_GUARD::R1(G)
- P(d);N_GUARD::QAB(E)
- P(g);OGATEB::QAB(E),XP(i)
- P(i);OGATE::R(H),XS(h)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(b);OGATE,XP(F)::B(B)
- S(h);N_GUARD::R1(G),XS(h)
- P(g);OGATEB::QAB(E),XP(i)
- B(a);N_GUARD::S(D)
- S(b);OGATE::B(B)
- S(h);N_GUARD::R1(G)
- P(d);N_GUARD::QAB(E)
- P(i);OGATE::R(H),XS(h)
- Refutation
- S(b);CHECK
- Try
- B(J);
- Threat
- S(I)
- Vars
- S(h);N_GUARD,XB(J)::R1(G)
- B(a);N_GUARD::S(D)
- Refutation
- S(b);XP(F)
- Try
- B(J);
- Vars
- S(b);OGATE,XP(F)::B(B)
- S(h);N_GUARD,XB(J)::R1(G)
- S(h);N_GUARD::R1(G),XS(h)
- B(a);N_GUARD::S(D)
- B(a);N_GUARD,P_PINP(C)::S(D)
- S(b);OGATE::B(B)
- S(h);N_GUARD::R1(G)
- P(d);N_GUARD::QAB(E)
- Refutation
- P(g);
- Try
- R(G);
- Threat
- S(D)
- Vars
- P(g);OGATEB::QAB(E),XP(i)
- S(h);N_GUARD::R1(G)
- P(i);OGATE::R(H),XS(h)
- Refutation
- B(a);P_PINP(C),XR(G)
- Try
- R(G);
- Threat
- S(I)
- Vars
- S(h);N_GUARD::R1(G),XS(h)
- B(a);N_GUARD::S(D),XB(a)
- B(a);N_GUARD::S(D)
- Refutation
- K(f);S_FLIGHT,XR(G)
- Try
- R(H);
- Threat
- QAB1(E),XR(e)
- Vars
- S(h);N_GUARD::R1(G),XS(h)
- P(g);OGATEB::QAB(E),XP(i)
- B(a);N_GUARD::S(D)
- S(b);OGATE::B(B)
- S(h);N_GUARD::R1(G)
- Refutation
- P(i);
- Try
- R(H);CHECK
- Vars
- P(g);P_SPINP(g),S_CUTB(a),S_CUTS(h)::QAB(E),XP(i)
- Refutation
- P(i);P_SPINP(i)
- Try
- R(H);XP(i)
- Threat
- R(H),XS(h)
- Vars
- S(h);N_GUARD::R1(G),XS(h)
- B(a);N_GUARD::S(D)
- S(h);N_GUARD::R1(G)
- Refutation
- P(g);
- Try
- Q(E);N_PINR(e)
- Threat
- DUALS(4)
- Vars
- R(e);XP(F)::QAB1(E)
- R(e);::QAB1(E)
- Refutation
- B(a);P_PINP(C),XQ(E)
- Try
- Q(E);CHECK,N_PINR(e)
- Vars
- R(e);P_SPINR(e),S_CUTP(g),S_CUTP(g),S_CUTS(h)::B(B)
- S(h);P_SPINS(h)::R1(G)
- Refutation
- P(g);XQ(E)
- Try
- Actual
- Q(E);CHECK,N_PINR(e)
- Vars
- R(e);P_SPINR(e),S_CUTB(a),S_CUTP(g),S_CUTP(i),S_CUTS(h)::B(B)
- B(a);P_SPINB(a)::S(D)
- S(h);P_SPINS(h)::R1(G)
- P(g);OGATEB,P_SPINP(g)::QAB(E),XP(i)
- P(i);OGATE,P_SPINP(i)::R(H),XS(h)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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