MESON Chess Problem Database
Problem Display
PID: 17491 (K7/4Q3/3p3B/4bB2/4Rn2/Nn1k4/4R3/8 w - - 0 1)
Strerath, Otto
1st Prize, Chess Correspondent, 1947
#2
7 + 5
| 461 | Schach-Express | 1949 |
| 742 | Problem (Zagreb) | 1951 |
| 3105 | FIDE Album (1945-1955) | 1964 |
| 3310 | 2345 Chess Problems | 1997 |
| 23 | Die Schwalbe | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Rc4#
- 1...Ba1
- 2.Rc4#
- 1...Bb2
- 2.Rc4#
- 1...Bc3
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rxf4#
- 1...Bd4
- 2.R4e3#
- 1...Bf6
- 2.Rc4#
- 1...Bg7
- 2.Rc4#
- 1...Bh8
- 2.Rc4#
- 1...Sd2
- 2.R2e3#
- 1...Sd4
- 2.R4e3#
- 1...Sxe2
- 2.Rc4#
- 1...Kc3
- Tries
- 1.Ra4+?
- 1...Kc3
- 2.Sb1#
- 2.Sb5#
- 2.Rc2#
- 2.Rc4#
- 1...Kxe2!
- 1...Kc3
- 1.Rb4+?
- 1...Kc3
- 2.Rc4#
- 1...Kxe2!
- 1...Kc3
- 1.Rxf4+?
- 1...Kc3
- 2.Sb1#
- 2.Sb5#
- 2.Rc2#
- 2.Rc4#
- 1...Kxe2!
- 1...Kc3
- 1.Qxe5?
- threat
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rxf4#
- 1...Sxe2
- 2.Rxe2#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rg4#
- 2.Rh4#
- 1...Sd4
- 2.R4e3#
- 2.Qxd4#
- 1...Sd2
- 2.R2e3#
- 2.R4e3#
- 2.Qd4#
- 1...Sc5
- 2.R4e3#
- 2.Qd4#
- 1...Sg2
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Sh3
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Qg3#
- 1...Sd5
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Sh5
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Se6
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Qg3#
- 1...Sg6
- 2.R4e3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Qg3#
- 1...dxe5!
- threat
- 1.Qa7?
- threat
- 2.R4e3#
- 2.Qe3#
- 1...Kc3
- 2.Rc4#
- 1...Sxe2
- 2.Rc4#
- 2.Qe3#
- 1...Bd4
- 2.R4e3#
- 1...Sd4
- 2.R4e3#
- 1...Sg2
- 2.R4e3#
- 1...Sd5
- 2.R4e3#
- 1...Sc5!
- threat
- 1.Qc7?
- threat
- 2.Qc2#
- 2.Qc4#
- 1...Sa1
- 2.Qc4#
- 1...Bc3
- 2.Qc4#
- 1...Sd2
- 2.R2e3#
- 2.Qc2#
- 1...Sd4
- 2.R4e3#
- 2.Qc4#
- 1...Sa5
- 2.Qc2#
- 1...d5
- 2.Qc2#
- 1...Sc5!
- threat
- 1.Ra4+?
- Keys
- 1.Qh4!
- threat
- 2.Qg3#
- 1...Kc3
- 2.Rc4#
- 1...Sxe2
- 2.Rc4#
- 1...Bd4
- 2.R4e3#
- 1...Sd2
- 2.R2e3#
- 1...Sd4
- 2.R4e3#
- 1...Sg2
- 2.R4e3#
- 1...Sh3
- 2.R4e3#
- 1...Sd5
- 2.R4e3#
- 1...Sh5
- 2.R4e3#
- 1...Se6
- 2.R4e3#
- 1...Sg6
- 2.R4e3#
- threat
- 1.Qh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- K(b);P-FLIGHT::R1(C)
- B(d);::B(D)+R(C)
- B(d);SBLOCK::B(D)+R(C),DCHECK
- S(a);SBLOCK::R1(A)
- S(a);SBLOCK::B(D)+R(C),DCHECK
- S(c);SBLOCK,XR(A)::B(D)+R(C)
- Tries
- Try
- R(C);CHECK
- Refutation
- K(b);P_SPINB(d),S_FLIGHT,XR(A)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::R1(C)
- Refutation
- K(b);P_SPINB(d),S_FLIGHT,XR(A)
- Try
- R(C);CHECK,XS(c)
- Refutation
- K(b);P_SPINB(d),S_FLIGHT,XR(A)
- Try
- Q(F);XB(d)
- Threat
- DUALS(5)
- Refutation
- P(e);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::R1(C)
- B(d);::B(D)+R(C),DCHECK
- S(a);::B(D)+R(C),DCHECK
- S(c);::B(D)+R(C),DCHECK
- Refutation
- S(a);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB1(F)
- B(d);::QAB1(F)
- P(e);::QAB1(F)
- Refutation
- S(a);
- Try
- Actual
- Q(F);
- Threat
- QAR(F)
- Vars
- K(b);P-FLIGHT::R1(C)
- S(c);SBLOCK,XR(A)::B(D)+R(C)
- B(d);SBLOCK::B(D)+R(C),DCHECK
- S(a);SBLOCK::R1(A)
- S(a);SBLOCK::B(D)+R(C),DCHECK
- S(c);::B(D)+R(C),DCHECK
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