MESON Chess Problem Database
Problem Display
PID: 157196 (8/7p/BK1N1p1q/2Pp2bR/1ppkN3/1R2pp2/1Pp4B/4Qr2 w - - 0 1)
Shanshin, Valery Yurevich
The Problemist, 2015
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...cxb3
- 2.Qxb4#
- 1...c3
- 2.Rxb4#
- 1...cxb3
- Tries
- 1.Sd2?
- threat
- 2.Sb5#
- 2.Sf5#
- 1...cxb3
- 2.Sxb3#
- 2.Sf5#
- 1...Qg6
- 2.Sb5#
- 1...Bf4
- 2.Sb5#
- 1...c3
- 2.Sf5#
- 2.Rxb4#
- 1...f5!
- threat
- 1.Sg3?
- threat
- 2.Sgf5#
- 1...Ke5
- 2.Qxe3#
- 1...f5
- 2.Sxf5#
- 1...Bf4
- 2.Sb5#
- 1...Qg6!
- threat
- 1.Sxg5?
- threat
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qh4#
- 2.Qxe3#
- 1...Qxh5
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qxe3#
- 1...Rxe1
- 2.Sxf3#
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 1...cxb3
- 2.Se6#
- 2.Sf5#
- 2.Qxb4#
- 2.Qh4#
- 1...fxg5
- 2.Qxe3#
- 1...c1Q
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qh4#
- 1...c1B
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qh4#
- 1...f5
- 2.Qxe3#
- 1...Qg6
- 2.Se6#
- 2.Sb5#
- 2.Qxe3#
- 1...Rg1
- 2.Sxf3#
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qxe3#
- 1...Rf2
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qxe3#
- 1...e2
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qd2#
- 2.Qh4#
- 1...f2
- 2.Sf3#
- 2.Se6#
- 2.Sb5#
- 2.Sf5#
- 2.Qxe3#
- 1...c3
- 2.Se6#
- 2.Sf5#
- 2.Rxb4#
- 2.Qh4#
- 1...Qxg5!
- threat
- 1.Rd3+?
- 1...cxd3
- 2.Qxb4#
- 1...Kxd3!
- 1...cxd3
- 1.Rxe3?
- threat
- 2.Sb5#
- 2.Sf5#
- 2.Qd2#
- 1...Rxe1
- 2.Sf5#
- 1...dxe4
- 2.Qd2#
- 1...c1Q
- 2.Sb5#
- 2.Sf5#
- 1...c1S
- 2.Sb5#
- 2.Sf5#
- 1...c1B
- 2.Sb5#
- 2.Sf5#
- 1...f5
- 2.Qd2#
- 1...Qg6
- 2.Sb5#
- 2.Qd2#
- 1...Rf2
- 2.Sb5#
- 2.Sf5#
- 1...Bf4
- 2.Sb5#
- 2.Qd2#
- 1...c3
- 2.Sf5#
- 2.Rd3#
- 1...Bxe3!
- threat
- 1.Sd2?
- Keys
- 1.Sc3!
- threat
- 2.Scb5#
- 1...Kd3
- 2.Se2#
- 1...bxc3
- 2.Qxc3#
- 1...cxb3
- 2.Sf5#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(f);OGATEB,XR(D)::QAR2(A),XP(e)
- P(f);OGATEB::R(D),XP(e)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(k);::S(J)
- B(i);::S(J)
- Refutation
- P(j);P_PINS(J)
- Try
- S(E);
- Threat
- S(E)
- Vars
- K(g);P_SPINB(i),P_SPINP(c),S_FLIGHT::QAR2(A),XP(c)
- P(j);P_PINS(J)::S(E),XP(j)
- B(i);::S(J)
- Refutation
- Q(k);
- Try
- S(E);XB(i)
- Threat
- DUALS(5)
- Vars
- P(j);P_PINS(J),XS(E)::QAB1(A),XP(c)
- P(j);P_PINS(J)::QAB1(A),XP(c)
- Refutation
- Q(k);XS(E)
- Try
- R(D);CHECK
- Vars
- P(f);XR(D)::QAR2(A),XP(e)
- Refutation
- K(g);P-FLIGHT,P_SPINP(f),XR(D)
- Try
- R(D);XP(c)
- Threat
- DUALS(3)
- Vars
- R(a);XQ(A)::S(J)
- P(h);XS(E)::QAR2(A)
- P(j);P_PINS(J)::QAR2(A)
- Refutation
- B(i);XR(D)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- K(g);P-FLIGHT,P_SPINP(f)::R(D)+S(E)
- P(e);OGATE,XS(E)::QAB1(A),XP(e)
- P(f);XR(D)::S(J)
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