MESON Chess Problem Database
Problem Display
PID: 82464 (5K2/3R4/Q1bNk3/R7/6N1/8/8/8 w - - 0 1)
Akerblom, Johan Axel
Schackvarlden, 1935
#2
6 + 2
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Re7#
- 1...Bg2
- 2.Re7#
- 1...Bf3
- 2.Re7#
- 1...Ba4
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Re7#
- 1...Bxd7
- 2.Re5#
- 1...Ba8
- 2.Re7#
- 1...Bh1
- Tries
- 1.Rc5?
- 1...Bxd7
- 2.Re5#
- 1...Bh1
- 2.Re7#
- 1...Bg2
- 2.Re7#
- 1...Bf3
- 2.Re7#
- 1...Ba4
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Bb5
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Re7#
- 1...Ba8
- 2.Re7#
- 1...Kxd7!
- 1...Bxd7
- 1.Rf5?
- 1...Bxd7
- 2.Re5#
- 1...Bh1
- 2.Re7#
- 1...Bg2
- 2.Re7#
- 1...Bf3
- 2.Re7#
- 1...Ba4
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Bb5
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Re7#
- 1...Ba8
- 2.Re7#
- 1...Kxd7!
- 1...Bxd7
- 1.Rg5?
- 1...Bxd7
- 2.Re5#
- 1...Bh1
- 2.Re7#
- 1...Bg2
- 2.Re7#
- 1...Bf3
- 2.Re7#
- 1...Ba4
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Bb5
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Re7#
- 1...Ba8
- 2.Re7#
- 1...Kxd7!
- 1...Bxd7
- 1.Rh5?
- 1...Bxd7
- 2.Re5#
- 1...Bh1
- 2.Re7#
- 1...Bg2
- 2.Re7#
- 1...Bf3
- 2.Re7#
- 1...Ba4
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Bb5
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Re7#
- 1...Ba8
- 2.Re7#
- 1...Kxd7!
- 1...Bxd7
- 1.Rc7?
- 1...Kxd6
- 2.Qxc6#
- 1...Bh1
- 2.Se4#
- 2.Re5#
- 2.Re7#
- 1...Bg2
- 2.Se4#
- 2.Re5#
- 2.Re7#
- 1...Bf3
- 2.Se4#
- 2.Re5#
- 2.Re7#
- 1...Ba4
- 2.Re5#
- 2.Re7#
- 1...Be4
- 2.Sxe4#
- 2.Re5#
- 2.Re7#
- 1...Bd5
- 2.Re7#
- 1...Bb7
- 2.Sxb7#
- 2.Re5#
- 2.Re7#
- 1...Bd7
- 2.Re5#
- 1...Ba8
- 2.Sb7#
- 2.Re5#
- 2.Re7#
- 1...Be8
- 2.Sxe8#
- 2.Re5#
- 2.Re7#
- 1...Bb5!
- 1...Kxd6
- 1.Rd8?
- threat
- 2.Re5#
- 1...Bd5
- 2.Qc8#
- 1...Bb5!
- threat
- 1.Qe2+?
- 1...Kxd7
- 2.Qe7#
- 1...Be4!
- 1...Kxd7
- 1.Qd3?
- threat
- 2.Re7#
- 2.Qf5#
- 1...Bxd7
- 2.Re5#
- 2.Qg6#
- 2.Qd5#
- 1...Be4
- 2.Re7#
- 1...Bd5
- 2.Qf5#
- 1...Kxd7!
- threat
- 1.Rc5?
- Keys
- 1.Rd5!
- 1...Kxd5
- 2.Qc4#
- 1...Kxd7
- 2.Qc8#
- 1...Bxd5
- 2.Re7#
- 1...Bxd7
- 2.Re5#
- 1...Ba4
- 2.Sb5#
- 1...Bb5
- 2.Sxb5#
- 1...Bb7
- 2.Sxb7#
- 1...Ba8
- 2.Sb7#
- 1...Kxd5
- 1.Rd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(a);::R1(E)
- B(a);SBLOCK,XR(E)::R1(B)
- Tries
- Try
- R(B);
- Vars
- B(a);SBLOCK,XR(E)::R1(B)
- B(a);::R1(E)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- R(B);
- Vars
- B(a);SBLOCK,XR(E)::R1(B)
- B(a);::R1(E)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- R(B);
- Vars
- B(a);SBLOCK,XR(E)::R1(B)
- B(a);::R1(E)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- R(B);
- Vars
- B(a);SBLOCK,XR(E)::R1(B)
- B(a);::R1(E)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- R(E);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(D)::QAR1(C),XB(a)
- B(a);::R1(E)
- B(a);::R1(B)
- Refutation
- B(a);
- Try
- R(E);
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::QAB(C)
- Refutation
- B(a);
- Try
- Q(C);CHECK
- Vars
- K(b);OGATE,S_FLIGHT,XR(E)::QAR1(C)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);::R1(E)
- B(a);::QAB1(C)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- Actual
- R(B);
- Vars
- K(b);OGATEB,S_FLIGHT,XR(B)::QAB1(C)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);SBLOCK,XR(B)::R1(E)
- B(a);SBLOCK,XR(E)::R1(B)
- B(a);::QAR(C)+S(D)
- B(a);::QAR(C)+S(D),XB(a)
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