MESON Chess Problem Database
Problem Display
PID: 194830 (8/1K2N1n1/Q5pq/Rp2kPr1/P2p1p2/2NPPP2/1r6/8 w - - 0 1)
Koci, Vladimir
Die Schwalbe, 2018
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Rxb5#
- 1...Rc2
- 2.Rxb5#
- 1...Rd2
- 2.Rxb5#
- 1...Re2
- 2.Rxb5#
- 1...Rf2
- 2.Rxb5#
- 1...Rbg2
- 2.Rxb5#
- 1...Rh2
- 2.Rxb5#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 1...dxc3
- 2.d4#
- 1...Ra2
- Tries
- 1.Se4?
- threat
- 2.Qd6#
- 2.Qf6#
- 1...Rxf5
- 2.Qd6#
- 1...Sxf5
- 2.Qf6#
- 1...fxe3
- 2.Qd6#
- 1...Sh5
- 2.Qd6#
- 2.Qe6#
- 1...Se6
- 2.Qd6#
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 1...gxf5!
- threat
- 1.Sxb5?
- threat
- 2.Qd6#
- 2.exd4#
- 1...Rxb5+
- 2.Rxb5#
- 1...dxe3
- 2.Qd6#
- 2.d4#
- 1...fxe3
- 2.Qd6#
- 1...gxf5
- 2.exd4#
- 1...Se6
- 2.Qxe6#
- 1...Rb4
- 2.Qd6#
- 1...Se8
- 2.Qe6#
- 2.exd4#
- 1...Sxf5!
- threat
- 1.Scd5?
- threat
- 2.Qf6#
- 2.exf4#
- 1...bxa4+
- 2.Sb4#
- 1...dxe3
- 2.Qf6#
- 1...fxe3
- 2.Qf6#
- 2.f4#
- 1...gxf5
- 2.exf4#
- 1...Qh2
- 2.Qf6#
- 1...Qh4
- 2.Qf6#
- 1...Rg1
- 2.Qf6#
- 1...Rgg2
- 2.Qf6#
- 1...Rg3
- 2.Qf6#
- 1...Rg4
- 2.Qf6#
- 1...Rh5
- 2.Qf6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 2.exf4#
- 1...Rxf5!
- threat
- 1.Se4?
- Keys
- 1.Se2!
- threat
- 2.exd4#
- 2.exf4#
- 1...Rxe2
- 2.Rxb5#
- 1...Rxf5
- 2.exd4#
- 1...Sxf5
- 2.exf4#
- 1...dxe3
- 2.d4#
- 1...fxe3
- 2.f4#
- 1...Se6
- 2.Qxe6#
- 1...Qh2
- 2.exd4#
- 1...Qh4
- 2.exd4#
- 1...Rb4
- 2.exf4#
- 1...Rg1
- 2.exd4#
- 1...Rg2
- 2.exd4#
- 1...Rg3
- 2.exd4#
- 1...Rg4
- 2.exd4#
- 1...Rh5
- 2.exd4#
- 1...Sh5
- 2.Qe6#
- 2.exd4#
- threat
- 1.Se2!
This is a version of 184024
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 9
- Sets
- R(a);N_GUARD::R(F),XP(d)
- S(i);N_GUARD::QAR1(H)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATE,XS(A)::P(B)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- R(f);XP(G)::QAB1(H)
- S(i);XP(G)::QAB1(H)
- P(c);XP(C)::QAB1(H)
- S(i);N_GUARD::QAR1(H)
- Refutation
- P(g);XP(G)
- Try
- S(A);P_SPINS(A),XP(d)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(A)::R(F),XR(a)
- P(c);XP(C)::QAB1(H)
- P(g);XP(G)::P(C),XP(b)
- S(i);N_GUARD::QAR1(H),XS(i)
- R(a);::QAB1(H)
- Refutation
- S(i);XP(G)
- Try
- S(A);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- P(d);CHECK,XP(E)::R(F)+S(A)
- P(b);XP(C)::QAB1(H)
- P(g);XP(G)::P(C),XP(c)
- Q(h);::QAB1(H)
- R(f);::QAB1(H)
- S(i);N_GUARD::QAR1(H)
- S(i);N_GUARD::QAR1(H),XS(i)
- Refutation
- R(f);XP(G)
- Try
- Actual
- S(A);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XS(A)::R(F),XP(d)
- R(f);XP(G)::P(C),XP(b)
- S(i);XP(G)::P(C),XP(c)
- P(b);OGATE,XP(C)::P(B)
- P(c);OGATE,XP(C)::P(D)
- S(i);N_GUARD::QAR1(H),XS(i)
- Q(h);::P(C),XP(b)
- R(a);::P(C),XP(c)
- R(f);::P(C),XP(b)
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