MESON Chess Problem Database
Problem Display
PID: 213214 (6bN/4NpKB/2R1p3/4k3/1pprp3/1pn1P2n/1B3R2/Q7 w - - 0 1)
Nemmer, Max F
Land og Folk, 1967
#2
9 + 11
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxh7
- 2.Sxf7#
- 1...Sb1
- 2.Bxd4#
- 2.Qa5#
- 2.exd4#
- 1...Sd1
- 2.Bxd4#
- 2.Qa5#
- 2.exd4#
- 1...Sa2
- 2.Bxd4#
- 2.exd4#
- 1...Se2
- 2.Qa5#
- 1...Sa4
- 2.Bxd4#
- 2.exd4#
- 1...Sd5
- 2.Bxd4#
- 2.exd4#
- 1...Sf4
- 2.exf4#
- 1...f5
- 2.Shg6#
- 1...f6
- 2.Shg6#
- 1...Bxh7
- Tries
- 1.Bxc3?
- threat
- 2.Bxd4#
- 2.Qa5#
- 2.exd4#
- 1...Sxf2
- 2.Bxd4#
- 2.Qa5#
- 1...Sf4
- 2.Bxd4#
- 2.exd4#
- 2.exf4#
- 1...bxc3!
- threat
- 1.Bxg8?
- threat
- 2.Sxf7#
- 1...f5
- 2.Shg6#
- 2.Sf7#
- 2.Rxe6#
- 1...f6
- 2.Shg6#
- 2.Sf7#
- 2.Rxe6#
- 1...Sg5!
- threat
- 1.Rxf7?
- threat
- 2.Shg6#
- 1...Bxf7
- 2.Sxf7#
- 1...Sf4
- 2.exf4#
- 1...Bxh7!
- threat
- 1.Qa5+?
- 1...Sb5
- 2.Bxd4#
- 2.Qxb5#
- 2.exd4#
- 1...Sd5
- 2.Bxd4#
- 2.exd4#
- 1...Rd5!
- 1...Sb5
- 1.Bxc3?
- Keys
- 1.Qh1!
- 1...Bxh7
- 2.Sxf7#
- 1...Sxf2
- 2.Qh2#
- 1...Rd1
- 2.Qxe4#
- 1...Rd2
- 2.Qxe4#
- 1...Rd3
- 2.Qxe4#
- 1...Rd5
- 2.Qxe4#
- 1...Rd6
- 2.Qxe4#
- 1...Rd7
- 2.Qxe4#
- 1...Rd8
- 2.Qxe4#
- 1...Sb1
- 2.Bxd4#
- 2.Qxe4#
- 2.exd4#
- 1...Sd1
- 2.Bxd4#
- 2.Qxe4#
- 2.exd4#
- 1...Sa2
- 2.Bxd4#
- 2.Qxe4#
- 2.exd4#
- 1...Se2
- 2.Qxe4#
- 1...Sa4
- 2.Bxd4#
- 2.Qxe4#
- 2.exd4#
- 1...Sb5
- 2.Qxe4#
- 1...Sd5
- 2.Bxd4#
- 2.Qxe4#
- 2.exd4#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exf4#
- 1...Sg5
- 2.Qh2#
- 1...f5
- 2.Shg6#
- 1...f6
- 2.Shg6#
- 1...Bxh7
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- B(k);N_GUARD,XB(H)::S(I),XP(j)
- S(b);N_GUARD,P_SPINR(f)::QAR(A)
- S(c);OGATE::P(D),XS(c)
- P(j);N_GUARD::S(I)
- Tries
- Try
- B(B);P_PINR(f),XS(b)
- Threat
- DUALS(3)
- Refutation
- P(d);N_SPINR(f),XB(B)
- Try
- B(H);XB(k)
- Threat
- S(I),XP(j)
- Refutation
- S(c);
- Try
- R(C);XP(j)
- Threat
- S(I)
- Vars
- B(k);XR(C)::S(I),XB(k)
- S(c);OGATE::P(D),XS(c)
- Refutation
- B(k);XB(H)
- Try
- Q(A);CHECK
- Refutation
- R(f);P_SPINR(f),P_SPINS(b)
- Try
- Actual
- Q(A);
- Vars
- B(k);N_GUARD,XB(H)::S(I),XP(j)
- S(c);N_GUARD,XR(C)::QAB(A)
- R(f);N_GUARD,P_SPINS(b)::QAR1(A),XP(g)
- S(b);N_GUARD,P_SPINR(f)::QAR1(A),XP(g)
- S(c);N_GUARD::QAB(A)
- S(c);OGATE::P(D),XS(c)
- P(j);N_GUARD::S(I)
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