MESON Chess Problem Database
Problem Display
PID: 148025 (3r1Bb1/1N2n3/2B3Q1/pr1R1p2/4k1P1/1Rn2pP1/2P2P1K/3q1N2 w - - 0 1)
Keller, Kurt
Rochade Europa, 2005
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sd2#
- 1...Qb1
- 2.Sd2#
- 1...Qd2
- 2.Sxd2#
- 1...Qd3
- 2.cxd3#
- 1...Rxb3
- 2.Sc5#
- 1...Rb4
- 2.Sc5#
- 1...Rc5
- 2.Sxc5#
- 1...Rb6
- 2.Sc5#
- 1...Rd6
- 2.Sxd6#
- 1...Ra8
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Rc8
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Rxf8
- 2.Sd6#
- 1...Be6
- 2.Qxe6#
- 1...Bh7
- 2.Qe6#
- 1...Sb1
- 2.Re3#
- 1...Sa2
- 2.Re3#
- 1...Se2
- 2.Re3#
- 1...Sa4
- 2.Re3#
- 1...Sxc6
- 2.Qxf5#
- 1...Sc8
- 2.Qxf5#
- 1...Qa1
- Tries
- 1.Rb4+?
- 1...Qd4
- 2.Sd2#
- 2.Rbxd4#
- 1...Rxb4
- 2.Sc5#
- 1...axb4!
- 1...Qd4
- 1.Rd4+?
- 1...Ke5
- 2.Bg7#
- 1...Kxd4!
- 1...Ke5
- 1.Re5+?
- 1...Kxe5
- 2.Bg7#
- 1...Kd4!
- 1...Kxe5
- 1.Qg5?
- threat
- 2.Qe3#
- 2.Qf4#
- 1...Sxc6
- 2.Qxf5#
- 1...Qe2
- 2.Qf4#
- 1...Qe1
- 2.Qf4#
- 1...Qd2
- 2.Sxd2#
- 1...Qd3
- 2.Qf4#
- 2.cxd3#
- 1...Qd4
- 2.Qf4#
- 1...Se2
- 2.Re3#
- 2.Qe3#
- 1...Sg6
- 2.Qe3#
- 2.Qxf5#
- 1...f4
- 2.Qxf4#
- 2.Qe5#
- 1...Qc1!
- threat
- 1.Qd6?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Qxd5
- 2.Qf4#
- 1...Rxd5
- 2.Qf4#
- 1...Rxd6
- 2.Sxd6#
- 1...Bxd5
- 2.Qf4#
- 1...Scxd5
- 2.Qf4#
- 1...Sexd5
- 2.Qf4#
- 1...fxg4
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Qc1
- 2.Rd4#
- 2.Re5#
- 2.Qe5#
- 1...Qd2
- 2.Sxd2#
- 2.Rd4#
- 2.Re5#
- 2.Qe5#
- 1...Qd4
- 2.Rxd4#
- 2.Re5#
- 2.Qf4#
- 1...Se2
- 2.Re3#
- 2.Rd4#
- 2.Re5#
- 2.Qe5#
- 1...Sg6
- 2.Rd4#
- 2.Re5#
- 1...f4
- 2.Rd4#
- 2.Re5#
- 2.Qxf4#
- 2.Qe5#
- 1...Sxc6!
- threat
- 1.Rb4+?
- Keys
- 1.Bg7!
- threat
- 2.Rd4#
- 1...Qxd5
- 2.Sd2#
- 1...Rbxd5
- 2.Sc5#
- 1...Rdxd5
- 2.Sd6#
- 1...Bxd5
- 2.Qe6#
- 1...Scxd5
- 2.Re3#
- 1...Sexd5
- 2.Qxf5#
- 1...Sxc6
- 2.Qxf5#
- 1...Qd4
- 2.Rxd4#
- 2.Re5#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 21
- Sets
- Q(a);N_GUARD::S(A)
- Q(a);N_GUARD,P_PINP(C)::S(A),XQ(a)
- Q(a);OGATE::P(B),XQ(a)
- R(f);N_GUARD,XR(E)::S(K)
- R(f);N_GUARD::S(K)
- R(f);N_GUARD::S(K),XR(f)
- R(i);N_GUARD::S(K),XR(i)
- R(i);N_GUARD::S(K)
- R(i);N_GUARD,XB(L)::S(K)
- B(j);N_GUARD::QAR2(J),XB(j)
- B(j);N_GUARD::QAR2(J)
- S(b);OGATE::R1(E)
- S(h);N_GUARD,XB(I)::QAB1(J),XP(g)
- S(h);N_GUARD::QAB1(J),XP(g)
- Tries
- Try
- R(E);CHECK
- Vars
- R(f);XR(E)::S(K)
- Refutation
- P(e);XR(E)
- Try
- R(H);CHECK
- Vars
- K(d);N_SPINP(g),P-FLIGHT::B(L)
- Refutation
- K(d);N_SPINP(g),P-FLIGHT,XR(H)
- Try
- R(H);CHECK
- Vars
- K(d);N_SPINP(g),P-FLIGHT,XR(H)::B(L)
- Refutation
- K(d);N_SPINP(g),P-FLIGHT
- Try
- Q(J);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD,XB(I)::QAB1(J),XP(g)
- Q(a);P_PINP(C)::QAR1(J)
- Q(a);::QAR1(J)
- Q(a);N_GUARD,P_PINP(C)::S(A),XQ(a)
- Refutation
- Q(a);
- Try
- Q(J);N_PINP(g)
- Threat
- DUALS(4)
- Vars
- Q(a);P_SPINQ(a),XR(H)::QAR1(J)
- R(f);P_SPINR(f),XR(H)::QAR1(J)
- R(i);XQ(J)::S(K),XR(i)
- B(j);P_SPINB(j),XR(H)::QAR1(J)
- S(b);P_SPINS(b),XR(H)::QAR1(J)
- S(h);P_SPINS(h),XR(H)::QAR1(J)
- Refutation
- S(h);XB(I)
- Try
- Actual
- B(L);
- Threat
- B(I)+R(H),DCHECK
- Vars
- Q(a);N_GUARD,P_SPINQ(a),XR(H)::S(A)
- R(f);N_GUARD,P_SPINR(f),XR(H)::S(K)
- R(i);N_GUARD,P_SPINR(i),XR(H)::S(K)
- B(j);N_GUARD,P_SPINB(j),XR(H)::QAR2(J)
- S(b);OGATE,P_SPINS(b),XR(H)::R1(E)
- S(h);N_GUARD,P_SPINS(h),XR(H)::QAB1(J),XP(g)
- S(h);N_GUARD,XB(I)::QAB1(J),XP(g)
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