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Problem Display

PID: 96556 (8/8/3B4/2NpN3/1npkpn2/8/1P1K1P2/8 w - - 0 1)

Meurs, Abraham

BCPS, 1933

8/8/3B4/2NpN3/1npkpn2/8/1P1K1P2/8

#2

6 + 6

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Sa2
  - 2.Sc6#
- 1...Sc2
  - 2.Sc6#
- 1...Sbd3
  - 2.Sc6#
- 1...Sa6
  - 2.Sc6#
- 1...Sc6
  - 2.Sxc6#
- 1...Se2
  - 2.Se6#
- 1...Sg2
  - 2.Se6#
- 1...Sfd3
  - 2.Se6#
- 1...Sh3
  - 2.Se6#
- 1...Sh5
  - 2.Se6#
- 1...Se6
  - 2.Sxe6#
- 1...Sg6
  - 2.Se6#
- 1...c3+
  - 2.bxc3#
- 1...e3+
  - 2.fxe3#
Tries
- 1.b3?
  - 1...e3+
    - 2.fxe3#
  - 1...cxb3
    - 2.Sxb3#
  - 1...Se2
    - 2.Se6#
  - 1...Sa2
    - 2.Sc6#
  - 1...Sc2
    - 2.Sc6#
  - 1...Sbd3
    - 2.Sc6#
  - 1...Sa6
    - 2.Sc6#
  - 1...Sc6
    - 2.Sxc6#
  - 1...Sg2
    - 2.Se6#
  - 1...Sfd3
    - 2.Se6#
  - 1...Sh3
    - 2.Se6#
  - 1...Sh5
    - 2.Se6#
  - 1...Se6
    - 2.Sxe6#
  - 1...Sg6
    - 2.Se6#
  - 1...c3+!
- 1.f3?
  - 1...c3+
    - 2.bxc3#
  - 1...exf3
    - 2.Sxf3#
  - 1...Se2
    - 2.Se6#
  - 1...Sa2
    - 2.Sc6#
  - 1...Sc2
    - 2.Sc6#
  - 1...Sbd3
    - 2.Sc6#
  - 1...Sa6
    - 2.Sc6#
  - 1...Sc6
    - 2.Sxc6#
  - 1...Sg2
    - 2.Se6#
  - 1...Sfd3
    - 2.Se6#
  - 1...Sh3
    - 2.Se6#
  - 1...Sh5
    - 2.Se6#
  - 1...Se6
    - 2.Sxe6#
  - 1...Sg6
    - 2.Se6#
  - 1...e3+!
Keys
- 1.Kd1!
  - 1...Sa2
    - 2.Sc6#
  - 1...Sc2
    - 2.Sc6#
  - 1...Sbd3
    - 2.Sc6#
  - 1...Sa6
    - 2.Sc6#
  - 1...Sc6
    - 2.Sxc6#
  - 1...Se2
    - 2.Se6#
  - 1...Sg2
    - 2.Se6#
  - 1...Sfd3
    - 2.Se6#
  - 1...Sh3
    - 2.Se6#
  - 1...Sh5
    - 2.Se6#
  - 1...Se6
    - 2.Sxe6#
  - 1...Sg6
    - 2.Se6#
  - 1...c3
    - 2.Sb3#
  - 1...e3
    - 2.Sf3#

FEATURES

Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(e);N_GUARD::S(D)
- S(e);N_GUARD::S(D),XS(e)
- P(b);CHECK,OGATE::P(A),XP(b)
- P(d);CHECK,OGATE::P(C),XP(d)
Tries
- Try
  - P(A);
  - Vars
    - P(d);CHECK,OGATE::P(C),XP(d)
    - P(b);XP(A)::S(D),XP(b)
    - S(e);N_GUARD::S(D)
    - S(a);N_GUARD::S(E)
    - S(a);N_GUARD::S(E),XS(a)
    - S(e);N_GUARD::S(D),XS(e)
  - Refutation
    - P(b);CHECK
- Try
  - P(C);
  - Vars
    - P(b);CHECK,OGATE::P(A),XP(b)
    - P(d);XP(C)::S(E),XP(d)
    - S(e);N_GUARD::S(D)
    - S(a);N_GUARD::S(E)
    - S(a);N_GUARD::S(E),XS(a)
    - S(e);N_GUARD::S(D),XS(e)
  - Refutation
    - P(d);CHECK
Actual
- K(B);P-FLIGHT
- Vars
  - S(a);N_GUARD::S(E)
  - S(a);N_GUARD::S(E),XS(a)
  - S(e);N_GUARD::S(D)
  - S(e);N_GUARD::S(D),XS(e)
  - P(b);N_GUARD::S(D)
  - P(d);N_GUARD::S(E)

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