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Problem Display

PID: 99369 (8/Qn4K1/b2p2P1/3Pk3/4Bp1P/5P2/8/8 w - - 0 1)

Riczu, Lajos

Magyar Sakkelet, 1983

8/Qn4K1/b2p2P1/3Pk3/4Bp1P/5P2/8/8

#2

7 + 5

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Bf1
  - 2.Qa1#
- 1...Be2
  - 2.Qa1#
- 1...Bd3
  - 2.Qa1#
- 1...Bc4
  - 2.Qa1#
- 1...Bb5
  - 2.Qa1#
Tries
- 1.Kh6?
  - 1...Sc5
    - 2.Qg7#
  - 1...Bf1
    - 2.Qa1#
  - 1...Be2
    - 2.Qa1#
  - 1...Bd3
    - 2.Qa1#
  - 1...Bc4
    - 2.Qa1#
  - 1...Bb5
    - 2.Qa1#
  - 1...Sa5
    - 2.Qg7#
  - 1...Sd8
    - 2.Qg7#
  - 1...Kf6!
- 1.Kh7?
  - 1...Sc5
    - 2.Qg7#
  - 1...Bf1
    - 2.Qa1#
  - 1...Be2
    - 2.Qa1#
  - 1...Bd3
    - 2.Qa1#
  - 1...Bc4
    - 2.Qa1#
  - 1...Bb5
    - 2.Qa1#
  - 1...Sa5
    - 2.Qg7#
  - 1...Sd8
    - 2.Qg7#
  - 1...Kf6!
- 1.Kg8?
  - 1...Sc5
    - 2.Qg7#
  - 1...Bf1
    - 2.Qa1#
  - 1...Be2
    - 2.Qa1#
  - 1...Bd3
    - 2.Qa1#
  - 1...Bc4
    - 2.Qa1#
  - 1...Bb5
    - 2.Qa1#
  - 1...Sa5
    - 2.Qg7#
  - 1...Sd8
    - 2.Qg7#
  - 1...Kf6!
- 1.Kh8?
  - 1...Sc5
    - 2.Qg7#
  - 1...Bf1
    - 2.Qa1#
  - 1...Be2
    - 2.Qa1#
  - 1...Bd3
    - 2.Qa1#
  - 1...Bc4
    - 2.Qa1#
  - 1...Bb5
    - 2.Qa1#
  - 1...Sa5
    - 2.Qg7#
  - 1...Sd8
    - 2.Qg7#
  - 1...Kf6!
Keys
- 1.Kf8!
  - 1...Kf6
    - 2.Qd4#
  - 1...Sc5
    - 2.Qg7#
  - 1...Bf1
    - 2.Qa1#
  - 1...Be2
    - 2.Qa1#
  - 1...Bd3
    - 2.Qa1#
  - 1...Bc4
    - 2.Qa1#
  - 1...Bb5
    - 2.Qa1#
  - 1...Sa5
    - 2.Qg7#
  - 1...Sd8
    - 2.Qg7#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
Sets
- B(c);OGATE::QAB(F)
Tries
- Try
  - K(G);S_FLIGHT
  - Vars
    - S(e);OGATE::QAB(F)
    - B(c);OGATE::QAB(F)
  - Refutation
    - K(b);S_FLIGHT
- Try
  - K(G);P-FLIGHT
  - Vars
    - S(e);OGATE::QAB(F)
    - B(c);OGATE::QAB(F)
  - Refutation
    - K(b);S_FLIGHT
- Try
  - K(G);P-FLIGHT
  - Vars
    - S(e);OGATE::QAB(F)
    - B(c);OGATE::QAB(F)
    - B(c);OGATE,P_PINP(D)::QAB(F)
  - Refutation
    - K(b);S_FLIGHT
- Try
  - K(G);S_FLIGHT
  - Vars
    - S(e);OGATE::QAB(F)
    - B(c);OGATE::QAB(F)
  - Refutation
    - K(b);S_FLIGHT
Actual
- K(G);S_FLIGHT
- Vars
  - K(b);S_FLIGHT::QAB(F)
  - S(e);OGATE::QAB(F)
  - B(c);OGATE::QAB(F)

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).