MESON Chess Problem Database
Problem Display
PID: 89894 (1b2K3/1pNN1p1b/1B2p3/p7/r1kp3R/pR3B2/Pn4Q1/4rnq1 w - - 0 1)
Kutzborski, Dieter
Die Schwalbe, 1968
#2
9 + 14
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Rxd4#
- 1...Qh1
- 2.Rxd4#
- 1...Qxg2
- 2.Rxd4#
- 1...Ra1
- 2.Se5#
- 1...Rb1
- 2.Se5#
- 1...Rc1
- 2.Se5#
- 1...Rd1
- 2.Se5#
- 1...Re3
- 2.Rxd4#
- 1...Re4
- 2.Qc2#
- 1...Re5
- 2.Sxe5#
- 1...Bc2
- 2.Qxc2#
- 1...Be4
- 2.Se5#
- 1...Bg8
- 2.Qc2#
- 1...Se3
- 2.Se5#
- 2.Rxd4#
- 1...Sd3
- 2.Qc2#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Qc2#
- 1...Qh2
- Tries
- 1.Be2+?
- 1...Bd3
- 2.Se5#
- 1...Sd3
- 2.Se5#
- 1...Rxe2!
- 1...Bd3
- 1.Be4?
- threat
- 2.Se5#
- 2.Qc2#
- 1...Qxg2
- 2.Se5#
- 1...Rxe4
- 2.Qc2#
- 1...Bxe4
- 2.Se5#
- 1...Bxc7
- 2.Qc2#
- 1...Qf2
- 2.Se5#
- 1...Qe3
- 2.Se5#
- 1...Rc1
- 2.Se5#
- 1...Re2
- 2.Se5#
- 1...Re3
- 2.Se5#
- 1...Sd2
- 2.Se5#
- 1...Se3
- 2.Se5#
- 1...Sd1
- 2.Se5#
- 1...Sd3
- 2.Qc2#
- 1...d3
- 2.Se5#
- 2.Bxd3#
- 2.Bd5#
- 1...e5
- 2.Sxe5#
- 2.Bd5#
- 2.Qc2#
- 1...f6
- 2.Qc2#
- 1...Qh2!
- threat
- 1.Bc6?
- threat
- 2.Bb5#
- 1...bxc6
- 2.Qxc6#
- 1...Re5
- 2.Sxe5#
- 1...Rb4!
- threat
- 1.Re4?
- threat
- 2.Se5#
- 2.Qc2#
- 1...Qxg2
- 2.Se5#
- 2.Rxd4#
- 1...Rxe4
- 2.Qc2#
- 1...Bxe4
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qh2
- 2.Rxd4#
- 1...Qe3
- 2.Se5#
- 1...Rc1
- 2.Se5#
- 1...Re2
- 2.Se5#
- 1...Re3
- 2.Se5#
- 2.Rxd4#
- 1...Sd2
- 2.Se5#
- 1...Se3
- 2.Se5#
- 2.Rxd4#
- 1...Sd1
- 2.Se5#
- 1...Sd3
- 2.Qc2#
- 1...e5
- 2.Sxe5#
- 2.Qc2#
- 1...f6
- 2.Qc2#
- 1...Bxc7!
- threat
- 1.Qxg1?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 1...Rd1
- 2.Se5#
- 1...Re3
- 2.Rxd4#
- 1...Be4
- 2.Se5#
- 2.Qxd4#
- 1...Se3
- 2.Se5#
- 2.Rxd4#
- 1...e5
- 2.Bd5#
- 1...Re4!
- threat
- 1.Qe2+?
- 1...Bd3
- 2.Se5#
- 1...Sd3
- 2.Se5#
- 2.Qc2#
- 1...Rxe2!
- 1...Bd3
- 1.Be2+?
- Keys
- 1.Bxb7!
- threat
- 2.Ba6#
- 2.Qc6#
- 1...Qxg2
- 2.Ba6#
- 2.Rxd4#
- 1...Qh1
- 2.Ba6#
- 2.Rxd4#
- 1...Re4
- 2.Ba6#
- 2.Qc2#
- 1...Re5
- 2.Sxe5#
- 1...Rb4
- 2.Qc6#
- 1...Be4
- 2.Se5#
- 2.Ba6#
- 1...Sd3
- 2.Ba6#
- 2.Qc2#
- threat
- 1.Bxb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 15
- Sets
- Q(c);N_GUARD::R1(E),XP(h)
- Q(c);N_GUARD,XQ(B)::R1(E),XP(h)
- R(a);N_GUARD::S(H)
- R(a);S_CUTQ(c)::R1(E),XP(h)
- R(a);N_SPINP(h),S_CUTB(m)::QAR2(B)
- R(a);N_GUARD::S(H),XR(a)
- B(m);N_GUARD::QAR2(B),XB(m)
- B(m);N_SPINP(h),S_CUTR(a)::S(H)
- B(m);N_GUARD::QAR2(B)
- S(d);S_CUTB(m)::QAR2(B)
- P(j);N_GUARD::B(D)
- P(l);S_CUTB(m)::QAR2(B)
- Tries
- Try
- B(D);CHECK
- Vars
- B(m);P_SPINB(m)::S(H)
- S(d);P_SPINS(d)::S(H)
- Refutation
- R(a);XB(D)
- Try
- B(D);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- Q(c);XQ(B)::S(H)
- R(a);XB(D)::QAR2(B)
- B(m);XB(D)::S(H)
- B(n);XS(G)::QAR2(B)
- Q(c);::S(H)
- R(a);::S(H)
- S(b);::S(H)
- S(d);::S(H)
- S(d);::QAR2(B)
- P(l);::QAR2(B)
- Refutation
- Q(c);
- Try
- B(D);
- Threat
- B(D)
- Vars
- P(k);OGATE,XB(D)::QAR2(B),XP(k)
- R(a);N_GUARD::S(H),XR(a)
- Refutation
- R(f);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINP(h),XR(E)::QAR2(B)
- B(m);N_SPINP(h),XR(E)::S(H)
- Q(c);::S(H)
- Q(c);N_GUARD::R1(E),XP(h)
- R(a);::S(H)
- S(b);::S(H)
- S(d);::S(H)
- S(d);::QAR2(B)
- P(l);::QAR2(B)
- Refutation
- B(n);XS(G)
- Try
- Q(B);XQ(c)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::S(H)
- R(a);::R1(E),XP(h)
- P(j);N_GUARD::B(D)
- Refutation
- R(a);N_SPINP(h)
- Try
- Q(B);CHECK
- Vars
- B(m);P_SPINB(m)::S(H)
- Refutation
- R(a);XQ(B)
- Try
- Actual
- B(D);XP(k)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::S(H),XR(a)
- R(f);::QAR2(B)
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