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Problem Display

PID: 36936 (BnR1N3/3p3p/1P1P1P2/3NkP2/R4pP1/1QP2p2/rn3B1K/1r3b2 w - - 0 1)

Selb, Hans

Die Schwalbe, 1950

BnR1N3/3p3p/1P1P1P2/3NkP2/R4pP1/1QP2p2/rn3B1K/1r3b2

#2

14 + 10

3150	Asthetik und Ornamentik im Schachproblem	2000

SOLUTION

SOUND
Tries
- 1.Se3?
  - threat
    - 2.Re4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Rxa4
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sxa4
    - 2.Qd5#
  - 1...Rd1
    - 2.Re4#
  - 1...Bd3
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sd3
    - 2.Sc4#
    - 2.Re4#
    - 2.Qd5#
  - 1...Sc4
    - 2.Rc5#
  - 1...Sa6
    - 2.Re4#
    - 2.Qd5#
  - 1...Sc6
    - 2.Qd5#
  - 1...Bc4!
- 1.Sb4?
  - threat
    - 2.Bd4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sxa4
    - 2.Qd5#
  - 1...Sc6
    - 2.Qd5#
  - 1...Bc4
    - 2.Bd4#
  - 1...Sd1
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sd3
    - 2.Qd5#
  - 1...Sc4
    - 2.Rc5#
  - 1...Sa6
    - 2.Bd4#
    - 2.Qd5#
  - 1...Rd1!
- 1.Sdc7?
  - threat
    - 2.Bd4#
    - 2.Re4#
    - 2.Qd5#
  - 1...Rxa4
    - 2.Qd5#
  - 1...Sxa4
    - 2.Qd5#
  - 1...Rd1
    - 2.Re4#
  - 1...Re1
    - 2.Bd4#
    - 2.Qd5#
  - 1...Bd3
    - 2.Bd4#
    - 2.Qd5#
  - 1...Bc4
    - 2.Bd4#
  - 1...Sd1
    - 2.Re4#
    - 2.Qd5#
  - 1...Sd3
    - 2.Re4#
    - 2.Qd5#
  - 1...Sc6
    - 2.Qd5#
  - 1...Sc4!
Keys
- 1.Se7!
  - threat
    - 2.Bd4#
    - 2.Re4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Rxa4
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sxa4
    - 2.Qd5#
  - 1...Rd1
    - 2.Re4#
  - 1...Re1
    - 2.Bd4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Bd3
    - 2.Bd4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Bc4
    - 2.Bd4#
  - 1...Sd1
    - 2.Re4#
    - 2.Rc5#
    - 2.Qd5#
  - 1...Sd3
    - 2.Re4#
    - 2.Qd5#
  - 1...Sc4
    - 2.Rc5#
  - 1...Sa6
    - 2.Bd4#
    - 2.Re4#
    - 2.Qd5#
  - 1...Sc6
    - 2.Qd5#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
Sets
Tries
- Try
  - S(G);
  - Threat
    - DUALS(3)
  - Vars
    - S(d);P_PINB(A),XR(E)::QAR1(C)
    - R(a);::R1(E)
    - S(d);P_PINB(A)::R(M)
    - S(j);::QAR1(C)
  - Refutation
    - B(b);
- Try
  - S(G);
  - Threat
    - DUALS(3)
  - Vars
    - S(d);P_PINB(A),XR(E)::QAR1(C)
    - S(j);::QAR1(C)
    - B(b);::B(A)
    - S(d);P_PINB(A)::QAR1(C)
    - S(d);P_PINB(A)::R(M)
  - Refutation
    - R(a);
- Try
  - S(G);
  - Threat
    - DUALS(3)
  - Vars
    - R(c);XR(E)::QAR1(C)
    - S(d);P_PINB(A),XR(E)::QAR1(C)
    - R(a);::R1(E)
    - B(b);::B(A)
    - S(j);::QAR1(C)
  - Refutation
    - S(d);P_PINB(A)
Actual
- S(G);
- Threat
  - DUALS(4)
- Vars
  - S(d);P_PINB(A),XR(E)::QAR1(C)
  - R(a);::R1(E)
  - B(b);::B(A)
  - S(d);P_PINB(A)::R(M)
  - S(j);::QAR1(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).