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Problem Display

PID: 124507 (7q/1nnNpp1b/4kbpR/3R4/2B5/8/6K1/5Q2 w - - 0 1)

Kiss, Janos

Dunaujvarosi Hirlap, 1962-1964

7q/1nnNpp1b/4kbpR/3R4/2B5/8/6K1/5Q2

#2

6 + 9

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Qf8
  - 2.Sxf8#
- 1...Ba1
  - 2.Qf5#
- 1...Bb2
  - 2.Qf5#
- 1...Bc3
  - 2.Qf5#
- 1...Bd4
  - 2.Qf5#
- 1...Bh4
  - 2.Qf5#
- 1...Bg5
  - 2.Qf5#
- 1...Bg7
  - 2.Qf5#
- 1...Bg8
  - 2.Sf8#
- 1...Sa5
  - 2.Sc5#
- 1...Sc5
  - 2.Sxc5#
- 1...Sd6
  - 2.Sc5#
- 1...Sd8
  - 2.Sc5#
- 1...Sb5
  - 2.Rd1#
  - 2.Rd2#
  - 2.Rd3#
  - 2.Rd4#
- 1...Sa6
  - 2.Rd1#
  - 2.Rd2#
  - 2.Rd3#
  - 2.Rd4#
- 1...Sa8
  - 2.Rd1#
  - 2.Rd2#
  - 2.Rd3#
  - 2.Rd4#
- 1...Se8
  - 2.Rd1#
  - 2.Rd2#
  - 2.Rd3#
  - 2.Rd4#
Tries
- 1.Qd1?
  - threat
    - 2.Re5#
    - 2.Qg4#
  - 1...Sxd5
    - 2.Qxd5#
  - 1...Be5
    - 2.Rxe5#
  - 1...Sd6
    - 2.Sc5#
  - 1...Ba1
    - 2.Re5#
  - 1...Bb2
    - 2.Re5#
  - 1...Bc3
    - 2.Re5#
  - 1...Bh4
    - 2.Re5#
  - 1...Bg5
    - 2.Re5#
  - 1...Bg7
    - 2.Re5#
  - 1...g5
    - 2.Re5#
  - 1...Bd4!
- 1.Qxf6+?
  - 1...Qxf6
    - 2.Sf8#
  - 1...exf6!
Keys
- 1.Qd3!
  - threat
    - 2.Re5#
    - 2.Rd6#
    - 2.Qh3#
  - 1...Sxd5
    - 2.Qxd5#
  - 1...Sd6
    - 2.Sc5#
    - 2.Rxd6#
  - 1...Ba1
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...Bb2
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...Bc3
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...Bd4
    - 2.Qf5#
  - 1...Bh4
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...Be5
    - 2.Rxe5#
    - 2.Rd6#
  - 1...Bg5
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...Bg7
    - 2.Re5#
    - 2.Rd6#
    - 2.Qf5#
  - 1...g5
    - 2.Re5#
    - 2.Rd6#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
Sets
- Q(i);N_GUARD::S(F),XQ(i)
- B(b);P_SPINP(c)::QAB1(A)
- B(h);S_CUTQ(i)::S(F)
- S(d);N_GUARD::S(F)
- S(d);N_GUARD::S(F),XS(d)
Tries
- Try
  - Q(A);
  - Threat
    - DUALS(2)
  - Vars
    - S(e);OGATE,P_SPINS(e),XR(D)::QAB1(A),XS(e)
    - B(b);P_SPINP(c)::B(C)+R(D),DCHECK,XB(b)
    - S(d);N_GUARD::S(F)
    - B(b);P_SPINP(c)::B(C)+R(D),DCHECK
    - P(c);P_SPINB(b)::B(C)+R(D),DCHECK
  - Refutation
    - B(b);P_SPINP(c)
- Try
  - Q(A);CHECK,XB(b)
  - Vars
    - Q(i);SBLOCK,XQ(A)::S(F)
  - Refutation
    - P(f);XQ(A)
Actual
- Q(A);
- Threat
  - DUALS(3)
- Vars
  - S(e);OGATE,P_SPINS(e),XR(D)::QAB1(A),XS(e)
  - B(b);P_SPINP(c)::QAB1(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).