MESON Chess Problem Database
Problem Display
PID: 184289 (1b4R1/1k1pRN2/1P4p1/2P5/6K1/1N5p/b7/Q4B2 w - - 0 1)
ten Cate, Pieter
The Problemist, 1980
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Sa5#
- 1...Bg3
- 2.Sa5#
- 1...Bf4
- 2.Sa5#
- 1...Be5
- 2.Sa5#
- 1...Bd6
- 2.Sa5#
- 1...Ba7
- 2.Sa5#
- 1...Bc7
- 2.Sa5#
- 1...Bh2
- Tries
- 1.Sd6+?
- 1...Ka8
- 2.Qxa2#
- 1...Bxd6
- 2.Sa5#
- 1...Kc6!
- 1...Ka8
- 1.Sd8+?
- 1...Kc8
- 2.Ba6#
- 1...Ka8!
- 1...Kc8
- 1.Bg2+?
- 1...Ka6
- 2.Qf1#
- 1...hxg2!
- 1...Ka6
- 1.Bb5?
- threat
- 2.Qh1#
- 1...Bxb3
- 2.Qa6#
- 1...Bb1
- 2.Qa6#
- 1...Bc7
- 2.Sa5#
- 1...Ka8!
- threat
- 1.Rxd7+?
- 1...Ka8
- 2.Ra7#
- 2.Qxa2#
- 1...Bc7
- 2.Sa5#
- 2.Rxc7#
- 1...Kc6!
- 1...Ka8
- 1.Qd4?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kc6
- 2.Sa5#
- 2.Sd8#
- 2.Qxd7#
- 1...Ka8
- 2.Qd5#
- 1...Bb1
- 2.Qd5#
- 1...Bc7
- 2.Sa5#
- 2.Qd5#
- 1...Bxb3!
- threat
- 1.Qe5?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kc6
- 2.Sa5#
- 2.Sd8#
- 1...Ka8
- 2.Rxb8#
- 2.Qxb8#
- 2.Qd5#
- 1...Bxe5
- 2.Sa5#
- 1...Bb1
- 2.Qd5#
- 1...Bc7
- 2.Sa5#
- 2.Qxc7#
- 2.Qd5#
- 1...Bxb3!
- threat
- 1.Qd1?
- threat
- 2.Qf3#
- 2.Qd5#
- 1...Kc6
- 2.Sd8#
- 2.Qxd7#
- 1...Ka8
- 2.Qd5#
- 1...Bb1
- 2.Qd5#
- 1...Bc7
- 2.Sa5#
- 2.Qd5#
- 1...Bxb3!
- threat
- 1.Qxa2?
- 1...Kc6
- 2.Qa8#
- 1...Bh2
- 2.Sa5#
- 2.Qa8#
- 1...Bg3
- 2.Sa5#
- 2.Qa8#
- 1...Bf4
- 2.Sa5#
- 2.Qa8#
- 1...Be5
- 2.Sa5#
- 2.Qa8#
- 1...Bd6
- 2.Sa5#
- 2.Qa8#
- 1...Ba7
- 2.Sa5#
- 1...Bc7
- 2.Sa5#
- 2.Qa8#
- 1...h2
- 2.Bg2#
- 2.Qg2#
- 1...g5!
- 1...Kc6
- 1.Sd6+?
- Keys
- 1.Bc4!
- threat
- 2.Qh1#
- 1...Kc6
- 2.Sd8#
- 1...Ka8
- 2.Bd5#
- 1...Bb1
- 2.Bd5#
- 1...Bc7
- 2.Sa5#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- B(f);::S(C)
- B(f);N_SPINP(e)::S(C)
- Tries
- Try
- S(H);CHECK
- Vars
- K(d);N_SPINP(e),P_SPINB(a),S_FLIGHT::QAR(A),XB(a)
- B(f);XS(H)::S(C)
- Refutation
- K(d);N_SPINP(e),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- K(d);N_SPINP(e),S_FLIGHT::B(B)
- Refutation
- K(d);N_SPINP(e),P_SPINB(a),S_FLIGHT
- Try
- B(B);CHECK
- Vars
- K(d);N_SPINP(e),P_SPINB(a),S_FLIGHT::QAB(A)
- Refutation
- P(b);XB(B)
- Try
- B(B);
- Threat
- QAB(A)
- Vars
- B(a);OGATE,XS(C)::QAB1(A)
- B(a);OGATE::QAB1(A)
- B(f);N_SPINP(e)::S(C)
- Refutation
- K(d);N_SPINP(e),P_SPINB(a),S_FLIGHT
- Try
- R(G);CHECK,XP(e)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINP(e),P_SPINB(f),S_FLIGHT::QAB(A)
- B(a);::QAB(A)
- Refutation
- B(a);XS(C)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(f);XQ(A)::S(C)
- B(a);::QAB(A)
- Refutation
- B(a);XS(C)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINP(e),P_SPINB(f),S_FLIGHT::QAB(A)
- B(a);::QAB(A)
- Refutation
- B(a);XS(C)
- Try
- Q(A);XB(a)
- Vars
- K(d);N_SPINP(e),S_FLIGHT::QAB(A)
- B(f);::S(C)
- Refutation
- P(c);
- Try
- Actual
- B(B);
- Threat
- QAB(A)
- Vars
- K(d);N_SPINP(e),S_FLIGHT::S(H)
- K(d);N_SPINP(e),P_SPINB(a),S_FLIGHT::B(B)
- B(a);::B(B)
- B(f);N_SPINP(e)::S(C)
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).