MESON Chess Problem Database
Problem Display
PID: 65965 (2Q5/8/3PpP2/3pkpNB/3RbR1K/8/1N3P2/8 w - - 0 1)
Pearson, Arthur Cyril
3rd Prize Set, The Chess Monthly (Hoffer), 1881-1882
#2
10 + 5
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxd4
- Tries
- 1.Kg3?
- 1...Kxd4
- 2.Sf3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf6!
- 1...Kxd4
- 1.Sd1?
- 1...Kxd4
- 2.Qc3#
- 1...Kxd6
- 2.Sf7#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf4!
- 1...Kxd4
- 1.Sd3+?
- 1...Kxd6
- 2.Sf7#
- 1...Kxf6
- 2.Qf8#
- 2.Qh8#
- 1...Bxd3
- 2.Qxe6#
- 1...Kxd4!
- 1...Kxd6
- 1.Sa4?
- 1...Kxd4
- 2.Qc3#
- 1...Kxd6
- 2.Sf7#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf4!
- 1...Kxd4
- 1.Sf3+?
- 1...Kxf4
- 2.Sd3#
- 2.Qc1#
- 1...Kxd6
- 2.Sc4#
- 1...Kxf6
- 2.Qf8#
- 2.Qh8#
- 1...Bxf3!
- 1...Kxf4
- 1.Sf7+?
- 1...Kxf4
- 2.Sd3#
- 2.Qc1#
- 1...Kxf6
- 2.Qh8#
- 1...Kxd4!
- 1...Kxf4
- 1.Bd1?
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf6!
- 1...Kxd4
- 1.Be2?
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf6!
- 1...Kxd4
- 1.Bg6?
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf6!
- 1...Kxd4
- 1.Be8?
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 2.Sf7#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxf6!
- 1...Kxd4
- 1.Ra4?
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sf7#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...d4!
- 1...Kxf4
- 1.Rb4?
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sf7#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...d4!
- 1...Kxf4
- 1.Qxe6+?
- 1...Kxf4
- 2.Sd3#
- 2.Sh3#
- 1...Kxd4!
- 1...Kxf4
- 1.Qd8?
- 1...Kxf4
- 2.Sd3#
- 1...Bb1
- 2.Sf3#
- 2.Sf7#
- 1...Bh1
- 2.Sd3#
- 2.Sf7#
- 1...Bc2
- 2.Sf3#
- 2.Sf7#
- 1...Bg2
- 2.Sd3#
- 2.Sf7#
- 1...Bd3
- 2.Sxd3#
- 2.Sf3#
- 2.Sf7#
- 1...Bf3
- 2.Sd3#
- 2.Sxf3#
- 2.Sf7#
- 1...Kxd4!
- 1...Kxf4
- 1.Qf8?
- 1...Kxf4
- 2.Sd3#
- 1...Bb1
- 2.Sf3#
- 1...Bh1
- 2.Sd3#
- 1...Bc2
- 2.Sf3#
- 1...Bg2
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 2.Sf3#
- 1...Bf3
- 2.Sd3#
- 2.Sxf3#
- 1...Kxd4!
- 1...Kxf4
- 1.f7?
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxd6!
- 1...Kxd4
- 1.Kg3?
- Keys
- 1.Bf7!
- 1...Kxd4
- 2.Sf3#
- 1...Kxf4
- 2.Sd3#
- 1...Kxd6
- 2.Sc4#
- 1...Kxf6
- 2.Qh8#
- 1...Bb1
- 2.Qxe6#
- 1...Bh1
- 2.Qxe6#
- 1...Bc2
- 2.Qxe6#
- 1...Bg2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bf3
- 2.Qxe6#
- 1...Kxd4
- 1.Bf7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XP(I)
- Try
- S(A);
- Vars
- K(c);OGATEB,P_SPINB(a),S_FLIGHT,XR(C)::QAB1(J)
- K(c);P_SPINP(b),S_FLIGHT,XP(H)::S(F)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(D)
- Try
- S(A);CHECK
- Vars
- K(c);P_SPINP(b),S_FLIGHT,XP(H)::S(F)
- B(a);XS(A)::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- S(A);
- Vars
- K(c);OGATEB,P_SPINB(a),S_FLIGHT,XR(C)::QAB1(J)
- K(c);P_SPINP(b),S_FLIGHT,XP(H)::S(F)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(D)
- Try
- S(F);CHECK
- Vars
- K(c);P_SPINP(b),S_FLIGHT,XP(H)::S(A)
- Refutation
- B(a);XS(F)
- Try
- S(F);CHECK
- Vars
- K(c);P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- B(G);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XP(I)
- Try
- B(G);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XP(I)
- Try
- B(G);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XP(I)
- Try
- B(G);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XP(I)
- Try
- R(C);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- K(c);S_FLIGHT,XP(H)::S(F)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
- Refutation
- P(b);
- Try
- R(C);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- K(c);S_FLIGHT,XP(H)::S(F)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
- Refutation
- P(b);
- Try
- Q(J);CHECK,XP(e)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- Q(J);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- Q(J);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(A)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- P(I);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- K(c);P_SPINP(d),S_FLIGHT::QAB(J)
- B(a);::QAR1(J),XP(e)
- Refutation
- K(c);P_SPINP(b),S_FLIGHT,XP(H)
- Try
- Actual
- B(G);
- Vars
- K(c);P_SPINB(a),S_FLIGHT,XR(C)::S(F)
- K(c);P_SPINB(a),S_FLIGHT,XR(D)::S(A)
- K(c);P_SPINP(b),S_FLIGHT,XP(H)::S(A)
- K(c);OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::QAB(J)
- B(a);::QAR1(J),XP(e)
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).