MESON Chess Problem Database
Problem Display
PID: 145863 (2n1K2B/2rB1N2/5R2/3k2P1/1Ppn2R1/5p2/8/8 w - - 0 1)
Bouma, Gerhard Johan
Probleemblad, 1948
#2
8 + 6
| 23 | Die Schwalbe | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sb3
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sc6
- 2.Be6#
- 1...Se6
- 2.Rf5#
- 1...Sb6
- 2.Rd6#
- 1...Sd6+
- 2.Rxd6#
- 1...Sa7
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sc2
- Tries
- 1.Ra6?
- threat
- 2.Rxd4#
- 1...Sd6+
- 2.Rxd6#
- 1...Sc2
- 2.Be6#
- 1...Se2
- 2.Be6#
- 1...Sb3
- 2.Be6#
- 1...Sb5
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sc6!
- threat
- 1.Ra6?
- Keys
- 1.Rb6!
- threat
- 2.Rxd4#
- 1...Sd6+
- 2.Rxd6#
- 1...Sc2
- 2.Be6#
- 1...Se2
- 2.Be6#
- 1...Sb3
- 2.Be6#
- 1...Sb5
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 1...Sc6
- 2.Rb5#
- 1...Se6
- 2.Bxe6#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- S(c);N_GUARD::R(D)
- S(c);N_GUARD::R(D),XS(c)
- S(c);N_GUARD,SBLOCK::B(E)
- S(f);N_GUARD::R1(D)
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- Tries
- Try
- R(D);
- Threat
- R1(B),XS(c)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
- Refutation
- S(c);
- Try
- Actual
- R(D);
- Threat
- R1(B),XS(c)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD,S_CUTR(e)::R(D)
- S(c);N_GUARD::B(E),XS(c)
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