MESON Chess Problem Database
Problem Display
PID: 226879 (8/8/2K1p3/B7/2kp4/1p3B2/6P1/N1nQ4 w - - 0 1)
Popp, Johannes
Die Schwalbe, 1928
#2
6 + 5
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Qxb3#
- 1...Se2
- 2.Qxb3#
- 1...Sd3
- 2.Qxb3#
- 1...b2
- 2.Qc2#
- 1...e5
- 2.Bd5#
- 1...Sa2
- Tries
- 1.Sc2?
- threat
- 2.Sa3#
- 2.Qxd4#
- 1...bxc2
- 2.Qxc2#
- 1...b2
- 2.Sa3#
- 1...Se2
- 2.Sa3#
- 1...Sd3
- 2.Sa3#
- 1...e5
- 2.Sa3#
- 2.Bd5#
- 1...d3!
- threat
- 1.Be2+?
- 1...Sxe2
- 2.Qxb3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxb3#
- 2.Qc1#
- 2.Qxd3#
- 1...d3!
- 1...Sxe2
- 1.Be4?
- threat
- 2.Qxc1#
- 1...Sa2
- 2.Bd3#
- 2.Qxb3#
- 2.Qd3#
- 1...Se2
- 2.Bd3#
- 2.Qxb3#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxb3#
- 2.Qxd3#
- 1...b2
- 2.Qc2#
- 2.Qa4#
- 1...d3!
- threat
- 1.Bg4?
- threat
- 2.Bxe6#
- 1...e5
- 2.Be6#
- 1...d3!
- threat
- 1.Be1?
- 1...Sa2
- 2.Qxb3#
- 1...Se2
- 2.Qxb3#
- 1...Sd3
- 2.Qxb3#
- 1...b2
- 2.Qc2#
- 1...e5
- 2.Bd5#
- 1...d3!
- 1...Sa2
- 1.Qe2+?
- 1...Sd3
- 2.Qxe6#
- 1...d3
- 2.Qe4#
- 1...Sxe2!
- 1...Sd3
- 1.g3?
- 1...Sa2
- 2.Qxb3#
- 1...Se2
- 2.Qxb3#
- 1...Sd3
- 2.Qxb3#
- 1...b2
- 2.Qc2#
- 1...e5
- 2.Bd5#
- 1...d3!
- 1...Sa2
- 1.g4?
- 1...Sa2
- 2.Qxb3#
- 1...Se2
- 2.Qxb3#
- 1...Sd3
- 2.Qxb3#
- 1...b2
- 2.Qc2#
- 1...e5
- 2.Bd5#
- 1...d3!
- 1...Sa2
- 1.Sc2?
- Keys
- 1.Bh5!
- 1...d3
- 2.Qg4#
- 1...Sa2
- 2.Qxb3#
- 1...Se2
- 2.Qxb3#
- 1...Sd3
- 2.Qxb3#
- 1...b2
- 2.Qc2#
- 1...e5
- 2.Bf7#
- 1...d3
- 1.Bh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(B),XP(b)
- P(b);N_GUARD::QAR2(B)
- P(e);N_GUARD::B(D)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- P(b);OGATE,XS(A)::QAR2(B),XP(b)
- P(b);::S(A)
- S(a);::S(A)
- Refutation
- P(d);
- Try
- B(D);CHECK
- Vars
- S(a);XB(D)::QAB1(B),XP(b)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(D);
- Threat
- QAR(B),XS(a)
- Refutation
- P(d);
- Try
- B(D);
- Threat
- B(D),XP(e)
- Vars
- P(e);::B(D)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- S(a);N_GUARD::QAB1(B),XP(b)
- P(b);N_GUARD::QAR2(B)
- P(e);N_GUARD::B(D)
- Refutation
- P(d);
- Try
- Q(B);CHECK
- Vars
- S(a);P_SPINS(a),SBLOCK::QAB(B),XP(e)
- P(d);OGATEB,P_SPINP(d)::QAR2(B)
- Refutation
- S(a);XQ(B)
- Try
- P(C);
- Vars
- S(a);N_GUARD::QAB1(B),XP(b)
- P(b);N_GUARD::QAR2(B)
- P(e);N_GUARD::B(D)
- Refutation
- P(d);
- Try
- P(C);
- Vars
- S(a);N_GUARD::QAB1(B),XP(b)
- P(b);N_GUARD::QAR2(B)
- P(e);N_GUARD::B(D)
- Refutation
- P(d);
- Try
- Actual
- B(D);
- Vars
- P(d);OGATEB,SBLOCK::QAR(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(b);N_GUARD::QAR2(B)
- P(e);OGATEB::B(D)
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