MESON Chess Problem Database
Problem Display
PID: 219123 (8/5R2/2Q5/4k3/3r4/8/5NK1/6B1 w - - 0 1)
von Alvensleben, Wichard Udo Reinhard
Deutsche Schachzeitung, 1988
#2
5 + 2
| 15148 | Sadier Collection | 2020 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sg4#
- 1...Rd3
- 2.Sxd3#
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rg4+
- 2.Sxg4#
- 1...Rh4
- 2.Sd3#
- 1...Rd5
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rd1
- Tries
- 1.Kh1?
- 1...Rd1
- 2.Sg4#
- 1...Rd2
- 2.Sg4#
- 1...Rd3
- 2.Sxd3#
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rd5
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rh4+!
- 1...Rd1
- 1.Kf3?
- 1...Rd3+
- 2.Sxd3#
- 1...Rd1
- 2.Sg4#
- 1...Rd2
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rh4
- 2.Sd3#
- 1...Rd5
- 2.Sg4#
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rf4+!
- 1...Rd3+
- 1.Kh3?
- 1...Rd3+
- 2.Sxd3#
- 1...Rd1
- 2.Sg4#
- 1...Rd2
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rd5
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rh4+!
- 1...Rd3+
- 1.Re7+?
- 1...Kf4
- 2.Qf6#
- 1...Kf5!
- 1...Kf4
- 1.Rf8?
- 1...Rg4+
- 2.Sxg4#
- 1...Rd1
- 2.Sg4#
- 1...Rd3
- 2.Sxd3#
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rh4
- 2.Sd3#
- 1...Rd5
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rd2!
- 1...Rg4+
- 1.Kh1?
- Keys
- 1.Kg3!
- 1...Rd3+
- 2.Sxd3#
- 1...Rg4+
- 2.Sxg4#
- 1...Rd1
- 2.Sg4#
- 1...Rd2
- 2.Sg4#
- 1...Ra4
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rh4
- 2.Sd3#
- 1...Rd5
- 2.Qf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sg4#
- 1...Rd8
- 2.Sg4#
- 1...Rd3+
- 1.Kg3!
This anticipates 240704(1989)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(B)
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(a);SBLOCK::QAB1(D)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- R(a);N_GUARD,P_PINB(A)::S(B)
- R(a);N_GUARD::S(B)
- R(a);SBLOCK::QAB1(D)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- Refutation
- R(a);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- Refutation
- R(a);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(a);N_GUARD::S(B)
- R(a);SBLOCK::QAB1(D)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- Refutation
- R(a);CHECK
- Try
- R(E);CHECK
- Vars
- K(b);S_FLIGHT::QAR2(D)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(a);N_GUARD::S(B)
- R(a);SBLOCK::QAB1(D)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- Refutation
- R(a);P_PINS(B)
- Try
- Actual
- K(C);P-FLIGHT
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(a);N_GUARD::S(B)
- R(a);SBLOCK::QAB1(D)
- R(a);N_GUARD,SBLOCK::QAR1(D)
Developed and maintained by Brian Stephenson.
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