MESON Chess Problem Database
Problem Display
PID: 79661 (4N3/4p2N/2P1k3/R2b1pQ1/7K/8/8/8 w - - 0 1)
Hulf, LA
The Field, 1937
(First published on Sat Sep 11 1937)
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Qe3#
- 1...Bh1
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Ba2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bg2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bb3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bf3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bc4
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Be4
- 2.Qg6#
- 2.Qg8#
- 1...Bxc6
- 2.Qxf5#
- 1...f4
- 2.Qxd5#
- 1...Ke5
- Tries
- 1.Kh5?
- 1...Ke5
- 2.Qe3#
- 1...Kf7
- 2.Qg6#
- 1...Bxc6
- 2.Qxf5#
- 1...Bh1
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Ba2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bg2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bb3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bc4
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Be4
- 2.Qg6#
- 2.Qg8#
- 1...f4
- 2.Qxd5#
- 1...Bf3+!
- 1...Ke5
- 1.Sf8+?
- 1...Ke5
- 2.Qe3#
- 1...Kf7!
- 1...Ke5
- 1.Rb5?
- 1...Ke5
- 2.Qe3#
- 1...Bxc6
- 2.Qxf5#
- 1...Bh1
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Ba2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bg2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bb3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bf3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bc4
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Be4
- 2.Qg6#
- 2.Qg8#
- 1...f4
- 2.Qxd5#
- 1...Kf7!
- 1...Ke5
- 1.Rc5?
- 1...Ke5
- 2.Qe3#
- 1...Bxc6
- 2.Qxf5#
- 1...Bh1
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Ba2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bg2
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bb3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bf3
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bc4
- 2.Qxf5#
- 2.Qg6#
- 2.Qg8#
- 1...Be4
- 2.Qg6#
- 2.Qg8#
- 1...f4
- 2.Qxd5#
- 1...Kf7!
- 1...Ke5
- 1.Qd2?
- threat
- 2.Qxd5#
- 1...Ke5
- 2.Qe3#
- 1...Bxc6
- 2.Sg5#
- 1...Bh1
- 2.Sg5#
- 1...Ba2
- 2.Sg5#
- 2.Qxa2#
- 1...Bg2
- 2.Sg5#
- 1...Bb3
- 2.Sg5#
- 1...Bf3
- 2.Sg5#
- 1...Bc4
- 2.Sg5#
- 1...Be4
- 2.Sg5#
- 1...Kf7!
- threat
- 1.Qe3+?
- 1...Be4
- 2.Sg5#
- 1...Kf7!
- 1...Be4
- 1.Qf4?
- threat
- 2.Sg5#
- 1...Bxc6
- 2.Qxf5#
- 1...Kf7!
- threat
- 1.Qh6+?
- 1...Ke5
- 2.Qe3#
- 1...Kf7!
- 1...Ke5
- 1.Qh5?
- 1...Bxc6
- 2.Sf8#
- 2.Qxf5#
- 1...Bh1
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Ba2
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Bg2
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Bb3
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Bf3
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Bc4
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 2.Qxf5#
- 1...Be4
- 2.Sg5#
- 2.Sf8#
- 2.Qg6#
- 1...f4
- 2.Sf8#
- 2.Qxd5#
- 1...Ke5!
- 1...Bxc6
- 1.Qg7?
- threat
- 2.Sg5#
- 2.Sf8#
- 1...Bxc6
- 2.Sf8#
- 1...f4!
- threat
- 1.Kh5?
- Keys
- 1.Shf6!
- 1...Ke5
- 2.Qe3#
- 1...Kf7
- 2.Qg8#
- 1...Bxc6
- 2.Qg8#
- 1...exf6
- 2.Qxf6#
- 1...Bh1
- 2.Qg8#
- 1...Ba2
- 2.Qg8#
- 1...Bg2
- 2.Qg8#
- 1...Bb3
- 2.Qg8#
- 1...Bf3
- 2.Qg8#
- 1...Bc4
- 2.Qg8#
- 1...Be4
- 2.Qg8#
- 1...f4
- 2.Qxd5#
- 1...Ke5
- 1.Shf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- B(a);XP(D)::QAB1(C),XP(b)
- P(b);OGATE::QAB1(C),XB(a)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- K(c);S_FLIGHT::QAB1(C)
- B(a);XP(D)::QAB1(C),XP(b)
- P(b);OGATE::QAB1(C),XB(a)
- Refutation
- B(a);CHECK
- Try
- S(E);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- Refutation
- K(c);S_FLIGHT
- Try
- R(B);
- Vars
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- B(a);XP(D)::QAB1(C),XP(b)
- P(b);OGATE::QAB1(C),XB(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(B);
- Vars
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- B(a);XP(D)::QAB1(C),XP(b)
- P(b);OGATE::QAB1(C),XB(a)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(C);
- Threat
- QAB1(C),XB(a)
- Vars
- K(c);P-FLIGHT,P_SPINB(a)::QAR2(C)
- B(a);XP(D)::S(E)
- B(a);::S(E)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- B(a);P_SPINB(a)::S(E)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(C);
- Threat
- S(E)
- Vars
- B(a);XP(D)::QAB1(C),XP(b)
- Refutation
- K(c);P_SPINP(b),S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINB(a)::QAR2(C)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(C);
- Refutation
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);XP(D)::S(E)
- Refutation
- P(b);
- Try
- Actual
- S(E);
- Vars
- K(c);P-FLIGHT,P_SPINB(a),P_SPINP(b)::QAR2(C)
- K(c);S_FLIGHT::QAB1(C)
- B(a);XP(D)::QAB(C)
- P(d);OGATE,XS(E)::QAR1(C),XP(d)
- B(a);::QAB(C)
- P(b);OGATE::QAB1(C),XB(a)
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).