Meson Chess Problem Database

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Problem Display

PID: 227706 (8/3p4/2bK4/p7/kp6/1pP1p3/1P2Q3/5B2 w - - 0 1)

Bajtay, Jozsef

Nepszava, 1926

8/3p4/2bK4/p7/kp6/1pP1p3/1P2Q3/5B2

#2

5 + 7

6490	yacpdb	2020

SOLUTION

SOUND
Sets
- 1...Bh1
  - 2.Qb5#
- 1...Bg2
  - 2.Qb5#
- 1...Bf3
  - 2.Qb5#
- 1...Be4
  - 2.Qb5#
- 1...Bb5
  - 2.Qxb5#
- 1...Bd5
  - 2.Qb5#
- 1...Bb7
  - 2.Qb5#
- 1...Ba8
  - 2.Qb5#
- 1...bxc3
  - 2.Qc4#
Tries
- 1.Qd1?
  - threat
    - 2.Qa1#
  - 1...bxc3
    - 2.Qd4#
  - 1...e2!
- 1.Qd3?
  - 1...bxc3
    - 2.Qc4#
    - 2.Qd4#
  - 1...Bh1
    - 2.Qb5#
  - 1...Bg2
    - 2.Qb5#
  - 1...Bf3
    - 2.Qb5#
  - 1...Be4
    - 2.Qb5#
  - 1...Bb5
    - 2.Qxb5#
  - 1...Bd5
    - 2.Qb5#
  - 1...Bb7
    - 2.Qb5#
  - 1...Ba8
    - 2.Qb5#
  - 1...e2!
- 1.Qc4?
  - 1...Bh1
    - 2.Qb5#
  - 1...Bg2
    - 2.Qb5#
  - 1...Bf3
    - 2.Qb5#
  - 1...Be4
    - 2.Qb5#
  - 1...Bb5
    - 2.Qxb5#
  - 1...Bd5
    - 2.Qb5#
  - 1...Bb7
    - 2.Qb5#
  - 1...Ba8
    - 2.Qb5#
  - 1...e2!
- 1.Qa6?
  - 1...bxc3
    - 2.Qc4#
  - 1...Bh1
    - 2.Bb5#
    - 2.Qb5#
  - 1...Bg2
    - 2.Bb5#
    - 2.Qb5#
  - 1...Bf3
    - 2.Bb5#
    - 2.Qb5#
  - 1...Be4
    - 2.Bb5#
    - 2.Qb5#
  - 1...Bb5
    - 2.Bxb5#
    - 2.Qxb5#
  - 1...Bd5
    - 2.Bb5#
    - 2.Qb5#
  - 1...Bb7
    - 2.Bb5#
    - 2.Qb5#
  - 1...Ba8
    - 2.Bb5#
    - 2.Qb5#
  - 1...e2!
Keys
- 1.cxb4!
  - 1...Kxb4
    - 2.Qc4#
  - 1...axb4
    - 2.Qa6#
  - 1...Bh1
    - 2.Qb5#
  - 1...Bg2
    - 2.Qb5#
  - 1...Bf3
    - 2.Qb5#
  - 1...Be4
    - 2.Qb5#
  - 1...Bb5
    - 2.Qxb5#
  - 1...Bd5
    - 2.Qb5#
  - 1...Bb7
    - 2.Qb5#
  - 1...Ba8
    - 2.Qb5#

FEATURES

Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
Sets
- B(f);N_GUARD::QAB1(C)
- B(f);N_GUARD::QAB1(C),XB(f)
- P(d);OGATEB,XP(D)::QAR2(C)
Tries
- Try
  - Q(C);P_PINP(a)
  - Threat
    - QAR(C)
  - Vars
    - P(d);OGATEB,XP(D)::QAR(C)
  - Refutation
    - P(b);
- Try
  - Q(C);
  - Vars
    - B(f);N_GUARD::QAB1(C)
    - B(f);N_GUARD::QAB1(C),XB(f)
  - Refutation
    - P(b);
- Try
  - Q(C);P_PINP(d)
  - Vars
    - B(f);N_GUARD::QAB1(C)
    - B(f);N_GUARD::QAB1(C),XB(f)
  - Refutation
    - P(b);
- Try
  - Q(C);P_PINP(e)
  - Vars
    - P(d);OGATEB,XP(D)::QAR2(C)
  - Refutation
    - P(b);
Actual
- P(D);XP(d)
- Vars
  - K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(C)
  - P(e);OGATEB,SBLOCK,XP(D)::QAR2(C)
  - B(f);N_GUARD::QAB1(C)
  - B(f);N_GUARD::QAB1(C),XB(f)

Developed and maintained by Brian Stephenson.
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