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Problem Display

PID: 99002 (2q5/p2Np3/2p3p1/3kBP2/6p1/rp1P4/1P1QK3/8 w - - 0 1)

Bakcsi, Gyorgy

Magyar Sakkelet, 1965

2q5/p2Np3/2p3p1/3kBP2/6p1/rp1P4/1P1QK3/8

#2

7 + 9

6490	yacpdb	2009

SOLUTION

SOUND
Tries
- 1.Qc1?
  - threat
    - 2.Qh1#
    - 2.Qc4#
    - 2.Qc5#
  - 1...gxf5
    - 2.Qc4#
  - 1...c5
    - 2.Qh1#
  - 1...Qa6
    - 2.Qh1#
    - 2.Qc5#
  - 1...Qh8
    - 2.Qc4#
    - 2.Qc5#
  - 1...Ra1
    - 2.Qc4#
    - 2.Qc5#
  - 1...Ra4
    - 2.Qc5#
  - 1...Ra5
    - 2.Qh1#
    - 2.Qc4#
  - 1...g3
    - 2.Qc4#
    - 2.Qc5#
  - 1...Qxd7!
- 1.Qc3?
  - threat
    - 2.Qd4#
    - 2.Qc4#
    - 2.Qc5#
  - 1...Qxd7
    - 2.Qd4#
  - 1...gxf5
    - 2.Qc4#
  - 1...Qa6
    - 2.Qd4#
    - 2.Qc5#
  - 1...Ra4
    - 2.Qc5#
  - 1...Ra5
    - 2.Qd4#
    - 2.Qxb3#
    - 2.Qc4#
  - 1...c5!
- 1.Qe3?
  - threat
    - 2.Qd4#
    - 2.Qc5#
    - 2.Qe4#
  - 1...Qxd7
    - 2.Qd4#
  - 1...c5
    - 2.Qe4#
  - 1...Ra4
    - 2.Qc5#
  - 1...Ra5
    - 2.Qd4#
    - 2.Qe4#
  - 1...gxf5!
- 1.Qf4?
  - threat
    - 2.Qc4#
    - 2.Qd4#
    - 2.Qe4#
  - 1...Qxd7
    - 2.Qd4#
  - 1...gxf5
    - 2.Qc4#
  - 1...c5
    - 2.Qe4#
  - 1...Qa6
    - 2.Qd4#
    - 2.Qe4#
  - 1...Ra4!
Keys
- 1.Qb4!
  - threat
    - 2.Qc5#
    - 2.Qc4#
    - 2.Qd4#
    - 2.Qe4#
  - 1...Qxd7
    - 2.Qd4#
  - 1...gxf5
    - 2.Qc4#
  - 1...c5
    - 2.Qe4#
  - 1...Qa6
    - 2.Qc5#
    - 2.Qd4#
    - 2.Qe4#
  - 1...Ra4
    - 2.Qc5#
  - 1...Ra5
    - 2.Qxb3#
    - 2.Qc4#
    - 2.Qd4#
    - 2.Qe4#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
Sets
Tries
- Try
  - Q(B);
  - Threat
    - DUALS(3)
  - Vars
    - P(f);XP(F)::QAB1(B)
    - P(e);::QAB(B)
    - R(a);::QAR1(B)
  - Refutation
    - Q(i);XS(G)
- Try
  - Q(B);
  - Threat
    - DUALS(3)
  - Vars
    - Q(i);XS(G)::QAR1(B)
    - P(f);XP(F)::QAB1(B)
    - R(a);::QAR1(B)
  - Refutation
    - P(e);
- Try
  - Q(B);
  - Threat
    - DUALS(3)
  - Vars
    - Q(i);XS(G)::QAR1(B)
    - P(e);::QAB1(B)
    - R(a);::QAR1(B)
  - Refutation
    - P(f);XP(F)
- Try
  - Q(B);
  - Threat
    - DUALS(3)
  - Vars
    - Q(i);XS(G)::QAR1(B)
    - P(f);XP(F)::QAB1(B)
    - P(e);::QAB1(B)
  - Refutation
    - R(a);
Actual
- Q(B);
- Threat
  - DUALS(4)
- Vars
  - Q(i);XS(G)::QAR1(B)
  - P(f);XP(F)::QAB1(B)
  - P(e);::QAB1(B)
  - R(a);::QAR1(B)

Developed and maintained by Brian Stephenson.
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