MESON Chess Problem Database
Problem Display
PID: 243742 (B4RK1/4b3/1R2p3/4kNp1/1N1r4/1nr5/5Qp1/B7 w - - 0 1)
Berg, Wolfgang
Schach, 1983
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rc2
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rcd3
- 2.Sxd3#
- 1...Re3
- 2.Qxe3#
- 1...Rg3
- 2.Qxg3#
- 1...Rcc4
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rc5
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rc6
- 2.Qe3#
- 1...Rc7
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rc8
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rd1
- 2.Qe3#
- 2.Qg3#
- 1...Rd2
- 2.Qe3#
- 2.Qg3#
- 1...Rdd3
- 2.Sxd3#
- 1...Rdc4
- 2.Sd3#
- 1...Re4
- 2.Sd3#
- 1...Rf4
- 2.Sd3#
- 1...Rg4
- 2.Sd3#
- 1...Rh4
- 2.Sd3#
- 1...Rd5
- 2.Qe3#
- 1...Rd6
- 2.Qe3#
- 2.Qg3#
- 1...Rd7
- 2.Qe3#
- 2.Qg3#
- 1...Rd8
- 2.Qe3#
- 2.Qg3#
- 1...Sxa1
- 2.Qxd4#
- 1...Sc1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sa5
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...exf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Rc1
- Tries
- 1.Sh6?
- threat
- 2.Sf7#
- 1...Rd5
- 2.Qe3#
- 1...Rf3
- 2.Sg4#
- 1...Rf4
- 2.Sd3#
- 1...Rc6!
- threat
- 1.Sxe7?
- threat
- 2.Sg6#
- 2.Qf6#
- 1...Rd5
- 2.Qe3#
- 1...Rf3
- 2.Sg6#
- 1...Rf4
- 2.Sd3#
- 2.Sg6#
- 1...Rc6!
- threat
- 1.Bxc3?
- threat
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Bxb4
- 2.Qe3#
- 2.Qg3#
- 1...exf5
- 2.Sd3#
- 2.Rxf5#
- 2.Qe3#
- 2.Qxf5#
- 1...g1Q
- 2.Sd3#
- 1...g1B
- 2.Sd3#
- 2.Qg3#
- 1...g1R
- 2.Sd3#
- 2.Qe3#
- 1...Bf6
- 2.Sd3#
- 1...Sc1
- 2.Bxd4#
- 2.Qe3#
- 2.Qg3#
- 2.Qxd4#
- 1...Sd2
- 2.Sd3#
- 2.Bxd4#
- 2.Qg3#
- 2.Qxd4#
- 1...Sc5
- 2.Bxd4#
- 2.Qg3#
- 2.Qxd4#
- 1...Bxf8!
- threat
- 1.Rb5+?
- 1...Rc5
- 2.Sd3#
- 2.Qe3#
- 2.Qg3#
- 1...Rd5
- 2.Qe3#
- 1...Sc5
- 2.Qxd4#
- 1...Bc5!
- 1...Rc5
- 1.Qe1+?
- 1...Re3
- 2.Sd3#
- 2.Qxe3#
- 1...Re4
- 2.Sd3#
- 2.Qxe4#
- 1...Kf4!
- 1...Re3
- 1.Qe3+?
- 1...Re4
- 2.Sd3#
- 2.Qxe4#
- 1...Rxe3!
- 1...Re4
- 1.Qg3+?
- 1...Rf4
- 2.Sd3#
- 1...Rxg3!
- 1...Rf4
- 1.Qe2+?
- 1...Re3
- 2.Sd3#
- 2.Qxe3#
- 1...Re4
- 2.Sd3#
- 2.Qxe4#
- 1...Kf4!
- 1...Re3
- 1.Sh6?
- Keys
- 1.Sd6!
- threat
- 2.Sf7#
- 1...Rxd6
- 2.Qe3#
- 1...Bxd6
- 2.Qf6#
- 1...Rc6
- 2.Qg3#
- 1...Rf3
- 2.Sc4#
- 1...Rf4
- 2.Sd3#
- 1...Rd5
- 2.Qe3#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- R(c);N_GUARD,P_SPINR(d)::S(C),XR(c)
- R(c);N_GUARD,P_SPINR(d)::QAR2(B),XR(c)
- R(c);N_GUARD,P_SPINR(d)::QAB(B),XR(c)
- R(c);N_GUARD,P_SPINR(d)::QAR2(B)
- R(d);N_GUARD,P_SPINR(c)::S(C),XR(d)
- R(d);N_GUARD,P_SPINR(c)::S(C)
- R(d);N_GUARD,P_SPINR(c)::QAR2(B)
- S(b);N_GUARD,XB(A)::QAB1(B),XR(d)
- S(b);N_GUARD::QAB1(B),XR(d)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- R(d);N_GUARD,P_SPINR(c)::QAR2(B)
- R(c);P_SPINR(d)::S(D)
- R(d);N_GUARD,P_SPINR(c)::S(C)
- Refutation
- R(c);P_SPINR(d)
- Try
- S(D);XB(h)
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,P_SPINR(c)::QAR2(B)
- R(c);P_SPINR(d)::S(D)
- Refutation
- R(c);P_SPINR(d)
- Try
- B(A);P_PINR(d),XR(c)
- Threat
- DUALS(3)
- Vars
- P(a);::S(C)
- B(h);::S(C)
- Refutation
- B(h);XR(G)
- Try
- R(E);CHECK
- Vars
- R(d);P_SPINR(c)::QAR2(B)
- S(b);P_SPINS(b)::QAB1(B),XR(d)
- Refutation
- B(h);P_SPINB(h)
- Try
- Q(B);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(B);CHECK
- Refutation
- R(c);P_SPINR(d),XQ(B)
- Try
- Q(B);CHECK
- Vars
- R(d);P_SPINR(c)::S(C)
- Refutation
- R(c);P_SPINR(d),XQ(B)
- Try
- Q(B);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- R(d);N_GUARD,P_SPINR(c),XS(D)::QAR2(B)
- B(h);N_GUARD,XS(D)::QAB1(B)
- R(c);N_GUARD,P_SPINR(d)::QAB(B)
- R(c);N_GUARD,P_SPINR(d)::S(D)
- R(d);N_GUARD,P_SPINR(c)::S(C)
- R(d);N_GUARD,P_SPINR(c)::QAR2(B)
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