MESON Chess Problem Database
Problem Display
PID: 261578 (8/1B1N1R1Q/4p3/K2P1r2/4kn2/1Npr4/2P3P1/2BR4 w - - 0 1)
Johner, Hans
Neue Zurcher Zeitung, 1942
#2
11 + 6
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sbc5#
- 2.Rd4#
- 1...Rf3
- 2.Sbc5#
- 2.Rd4#
- 1...Rg3
- 2.Sbc5#
- 2.Rd4#
- 1...Rh3
- 2.Sbc5#
- 2.Rd4#
- 1...Rd4
- 2.Sbc5#
- 2.Rxd4#
- 1...Rxd5+
- 2.Sbc5#
- 1...Se2
- 2.cxd3#
- 1...Sh3
- 2.cxd3#
- 1...Sxd5
- 2.cxd3#
- 1...Sh5
- 2.cxd3#
- 1...Sg6
- 2.cxd3#
- 1...exd5
- 2.Qxf5#
- 1...e5
- 2.Sdc5#
- 2.Sf6#
- 2.Qxf5#
- 1...Re3
- Tries
- 1.Re1+?
- 1...Re3
- 2.Rxe3#
- 1...Se2!
- 1...Re3
- 1.Rxd3?
- threat
- 2.Sbc5#
- 2.Re3#
- 2.Rd4#
- 1...Sxg2
- 2.Sbc5#
- 1...Sxd5
- 2.Sbc5#
- 2.Rd4#
- 1...Se2
- 2.Sbc5#
- 1...Sh3
- 2.Sbc5#
- 2.Rd4#
- 1...Sh5
- 2.Sbc5#
- 2.Rd4#
- 1...Sg6
- 2.Sbc5#
- 2.Rd4#
- 1...e5
- 2.Sbc5#
- 2.Sdc5#
- 2.Sf6#
- 2.Re3#
- 2.Qxf5#
- 1...Sxd3!
- threat
- 1.Rxf5?
- threat
- 2.Sdc5#
- 2.Sf6#
- 2.Rxf4#
- 2.Re5#
- 1...Rxd5+
- 2.Sbc5#
- 2.Sdc5#
- 1...Sxg2
- 2.Sdc5#
- 2.Sf6#
- 2.Rff1#
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.cxd3#
- 1...Sxd5
- 2.Sdc5#
- 2.Sf6#
- 2.Rff1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rxd5#
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.cxd3#
- 1...Rd2
- 2.Re5#
- 1...Sg6
- 2.Rf4#
- 2.Re5#
- 1...Re3
- 2.Sbc5#
- 2.Sdc5#
- 2.Sf6#
- 2.Rd4#
- 2.Re5#
- 1...Se2
- 2.Sdc5#
- 2.Sf6#
- 2.Rff1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.cxd3#
- 1...Sh3
- 2.Sdc5#
- 2.Sf6#
- 2.Rff1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.cxd3#
- 1...Sh5
- 2.Sdc5#
- 2.Rff1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rxh5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.cxd3#
- 1...e5
- 2.Sdc5#
- 2.Sf6#
- 2.Rxf4#
- 2.Rxe5#
- 1...exf5!
- threat
- 1.Re1+?
- Keys
- 1.Qh5!
- 1...Rdxd5+
- 2.Sbc5#
- 1...Rfxd5+
- 2.Sdc5#
- 1...Rxd1
- 2.Qf3#
- 1...Rxh5
- 2.Rxf4#
- 1...Rxf7
- 2.Sdc5#
- 2.Qe5#
- 1...Sxg2
- 2.cxd3#
- 1...Sxd5
- 2.cxd3#
- 1...Sxh5
- 2.cxd3#
- 1...exd5
- 2.Qxf5#
- 1...Rd2
- 2.Qf3#
- 1...Re3
- 2.Sbc5#
- 2.Rd4#
- 1...Rf3
- 2.Sbc5#
- 2.Rd4#
- 2.Qxf3#
- 2.gxf3#
- 1...Rg3
- 2.Sbc5#
- 2.Rd4#
- 1...Rh3
- 2.Sbc5#
- 2.Rd4#
- 1...Rd4
- 2.Sbc5#
- 2.Rxd4#
- 2.Qf3#
- 1...Re5
- 2.Sdc5#
- 2.Sf6#
- 2.Rxf4#
- 2.Qxe5#
- 1...Rg5
- 2.Rxf4#
- 1...Rf6
- 2.Sdc5#
- 2.Sxf6#
- 2.Qe5#
- 1...Se2
- 2.cxd3#
- 1...Sh3
- 2.cxd3#
- 1...Sg6
- 2.cxd3#
- 1...e5
- 2.Sdc5#
- 2.Qxf5#
- 1...Rdxd5+
- 1.Qh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(b);CHECK,N_SPINR(e),P_SPINR(b),XP(G)::S(E)
- S(d);N_GUARD::P(C),XR(b)
- S(d);N_GUARD,P_SPINS(d),XP(G)::P(C),XR(b)
- S(d);N_GUARD,N_SPINR(e)::P(C),XR(b)
- P(f);N_GUARD,P_SPINP(f),XP(G)::QAB1(K),XR(e)
- Tries
- Try
- R(B);CHECK
- Vars
- R(b);N_GUARD,N_SPINR(e),P_SPINR(b)::R1(B),XR(b)
- Refutation
- S(d);P_SPINS(d)
- Try
- R(B);XR(b)
- Threat
- DUALS(3)
- Vars
- S(d);XP(D)::S(E)
- S(d);::S(E)
- Refutation
- S(d);XR(B)
- Try
- R(J);N_SPINP(G),XR(e)
- Threat
- DUALS(4)
- Vars
- R(b);::QAB(K)+R(J),DCHECK
- Refutation
- P(f);P_SPINP(f),XR(J)
- Try
- Actual
- Q(K);N_PINR(e)
- Vars
- R(b);CHECK,P_SPINR(b),XP(G)::S(E)
- R(e);CHECK,P_SPINR(e),XP(G)::S(I)
- R(b);N_GUARD,XR(B)::QAB1(K)
- R(e);OGATE,XQ(K)::R1(J),XS(d)
- S(d);N_GUARD,XP(D)::P(C),XR(b)
- S(d);N_GUARD,P_SPINS(d),XP(G)::P(C),XR(b)
- S(d);N_GUARD,XQ(K)::P(C),XR(b)
- P(f);N_GUARD,P_SPINP(f),XP(G)::QAB1(K),XR(e)
- R(b);N_GUARD::QAB1(K)
- R(e);OGATE::R1(J),XS(d)
- S(d);N_GUARD::P(C),XR(b)
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