Meson Chess Problem Database

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Problem Display

PID: 29185 (8/4B1K1/5NN1/8/3k4/1Rq5/4P3/2R2B2 w - - 0 1)

Plachutta, Josef

Deutsche Schachzeitung, 1868

8/4B1K1/5NN1/8/3k4/1Rq5/4P3/2R2B2

#2

8 + 2

3310	2345 Chess Problems	1997

SOLUTION

SOUND
Sets
- 1...Kc4
  - 2.Rb4#
- 1...Qa1
  - 2.Bc5#
  - 2.Rd3#
  - 2.e3#
- 1...Qe1
  - 2.Bc5#
  - 2.Rd3#
- 1...Qb2
  - 2.Bc5#
  - 2.Rd3#
  - 2.e3#
- 1...Qd2
  - 2.Bc5#
- 1...Qb4
  - 2.Rd3#
  - 2.e3#
- 1...Qa5
  - 2.Rd3#
  - 2.e3#
- 1...Qc2
  - 2.e3#
- 1...Qxb3
  - 2.Bc5#
- 1...Qd3
  - 2.Bc5#
  - 2.Rxd3#
- 1...Qe3
  - 2.Bc5#
  - 2.Rb4#
- 1...Qf3
  - 2.Bc5#
- 1...Qg3
  - 2.Bc5#
- 1...Qh3
  - 2.Bc5#
- 1...Qc4
  - 2.e3#
- 1...Qc5
  - 2.Bxc5#
  - 2.Rd3#
  - 2.e3#
- 1...Qc6
  - 2.Rd3#
  - 2.e3#
- 1...Qc7
  - 2.Rd3#
  - 2.e3#
- 1...Qc8
  - 2.Rd3#
  - 2.e3#
Tries
- 1.Bc5+?
  - 1...Kc4
    - 2.Rcxc3#
  - 1...Qxc5
    - 2.Rd3#
    - 2.e3#
  - 1...Kxc5!
- 1.e3+?
  - 1...Qxe3
    - 2.Bc5#
    - 2.Rc4#
    - 2.Rb4#
  - 1...Kxe3!
Keys
- 1.Rc2!
  - 1...Ke3
    - 2.Bc5#
  - 1...Kc4
    - 2.Rb4#
  - 1...Qxc2
    - 2.e3#
  - 1...Qxb3
    - 2.Bc5#
  - 1...Qa1
    - 2.Bc5#
    - 2.Rd3#
    - 2.e3#
  - 1...Qe1
    - 2.Bc5#
    - 2.Rd3#
  - 1...Qb2
    - 2.Bc5#
    - 2.Rd3#
    - 2.e3#
  - 1...Qd2
    - 2.Bc5#
  - 1...Qb4
    - 2.Rd3#
    - 2.e3#
  - 1...Qa5
    - 2.Rd3#
    - 2.e3#
  - 1...Qd3
    - 2.Bc5#
    - 2.Rxd3#
  - 1...Qe3
    - 2.Bc5#
    - 2.Rb4#
  - 1...Qf3
    - 2.Bc5#
  - 1...Qg3
    - 2.Bc5#
  - 1...Qh3
    - 2.Bc5#
  - 1...Qc4
    - 2.e3#
  - 1...Qc5
    - 2.Bxc5#
    - 2.Rd3#
    - 2.e3#
  - 1...Qc6
    - 2.Rd3#
    - 2.e3#
  - 1...Qc7
    - 2.Rd3#
    - 2.e3#
  - 1...Qc8
    - 2.Rd3#
    - 2.e3#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
Sets
- K(b);P-FLIGHT,P_PINS(E),P_SPINQ(a)::R1(D)
- Q(a);N_GUARD::B(G)
- Q(a);N_GUARD::P(C)
- Q(a);N_GUARD,XR(D)::B(G)
- Q(a);N_GUARD,P_PINS(F)::B(G)
Tries
- Try
  - B(G);CHECK
  - Vars
    - K(b);P-FLIGHT,P_PINS(E),P_SPINQ(a)::R1(A),XQ(a)
  - Refutation
    - K(b);P_PINS(E),P_SPINQ(a),S_FLIGHT,XB(G)
- Try
  - P(C);CHECK
  - Refutation
    - K(b);P_PINS(E),P_SPINQ(a),S_FLIGHT,XP(C)
Actual
- R(A);
- Vars
  - K(b);P_PINS(E),P_SPINQ(a),S_FLIGHT::B(G)
  - K(b);P-FLIGHT,P_PINS(E),P_SPINQ(a)::R1(D)
  - Q(a);N_GUARD,XR(A)::P(C)
  - Q(a);N_GUARD,XR(D)::B(G)
  - Q(a);N_GUARD::B(G)
  - Q(a);N_GUARD,P_PINS(F)::B(G)
  - Q(a);N_GUARD::P(C)

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