MESON Chess Problem Database
Problem Display
PID: 257604 (1Bk1r2n/Pp2P1pP/1prQ3b/1P2PKp1/6B1/2n5/8/8 w - - 0 1)
Moen, Kabe
Troll, 2021
(First published on Wed May 26 2021)
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Qe6#
- 1...Rc5
- 2.Qe6#
- 1...Rc7
- 2.Qxc7#
- 1...Rd8
- 2.Qxd8#
- 2.exd8Q#
- 2.exd8R#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8R#
- 1...Rg8
- 2.hxg8Q#
- 2.hxg8R#
- 1...Sb1
- 2.Ke4#
- 1...Sd1
- 2.Ke4#
- 1...Sa2
- 2.Ke4#
- 1...Se2
- 2.Ke4#
- 1...Sa4
- 2.Ke4#
- 1...Se4
- 2.Kxe4#
- 1...Sxb5
- 2.Ke4#
- 1...Sd5
- 2.Ke4#
- 1...Sg6
- 2.Kxg6#
- 1...Sf7
- 2.Kg6#
- 1...g6+
- 2.Kf6#
- 1...Rc4
- Tries
- 1.Bc7?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8R#
- 1...g6+
- 2.Kf6#
- 1...Rxc7
- 2.a8Q#
- 2.a8R#
- 1...Rxe7
- 2.Qd8#
- 2.a8Q#
- 2.a8R#
- 1...Sxb5
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Rc4
- 2.a8Q#
- 2.a8R#
- 1...Rc5
- 2.a8Q#
- 2.a8R#
- 1...Rd8
- 2.Qxd8#
- 2.a8Q#
- 2.a8R#
- 2.exd8Q#
- 2.exd8R#
- 1...Rg8
- 2.a8Q#
- 2.a8R#
- 2.hxg8Q#
- 2.hxg8R#
- 1...Sb1
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Sd1
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Sa2
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Se2
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Sa4
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Se4
- 2.Kxe4#
- 2.a8Q#
- 2.a8R#
- 1...Sd5
- 2.Ke4#
- 2.a8Q#
- 2.a8R#
- 1...Sg6
- 2.Kxg6#
- 2.a8Q#
- 2.a8R#
- 1...Sf7
- 2.Kg6#
- 2.a8Q#
- 2.a8R#
- 1...Rxd6!
- threat
- 1.bxc6?
- threat
- 2.Qc7#
- 2.Qe6#
- 2.Qd7#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8R#
- 1...g6+
- 2.Kf6#
- 1...bxc6
- 2.Qc7#
- 2.Qxc6#
- 1...Rd8
- 2.Qc7#
- 2.Qxd8#
- 2.exd8Q#
- 2.exd8R#
- 1...Sb5
- 2.Ke4#
- 2.Qe6#
- 2.Qd7#
- 1...Sd5
- 2.Ke4#
- 2.Qe6#
- 2.Qd7#
- 1...Rxe7!
- threat
- 1.a8Q?
- threat
- 2.Ba7#
- 2.Bc7#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8R#
- 1...g6+
- 2.Kf6#
- 1...Rc7
- 2.Ba7#
- 2.Bxc7#
- 2.Qxc7#
- 1...Rxd6!
- threat
- 1.a8R?
- threat
- 2.Ba7#
- 2.Bc7#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8R#
- 1...g6+
- 2.Kf6#
- 1...Rc7
- 2.Ba7#
- 2.Bxc7#
- 2.Qxc7#
- 1...Rxd6!
- threat
- 1.Bc7?
- Keys
- 1.Ke6!
- 1...Rxd6+
- 2.Kxd6#
- 1...Rxe7+
- 2.Kxe7#
- 1...Sxb5
- 2.Kd5#
- 1...Rc4
- 2.Qd7#
- 1...Rc5
- 2.Qd7#
- 1...Rc7
- 2.Qxc7#
- 1...Rd8
- 2.exd8Q#
- 2.exd8R#
- 1...Rf8
- 2.exf8Q#
- 2.exf8R#
- 1...Rg8
- 2.hxg8Q#
- 2.hxg8R#
- 1...Sb1
- 2.Kd5#
- 1...Sd1
- 2.Kd5#
- 1...Sa2
- 2.Kd5#
- 1...Se2
- 2.Kd5#
- 1...Sa4
- 2.Kd5#
- 1...Se4
- 2.Kd5#
- 1...Sd5
- 2.Kxd5#
- 1...Sg6
- 2.Kf7#
- 1...Sf7
- 2.Kxf7#
- 1...g6
- 2.Kf6#
- 1...Rxd6+
- 1.Ke6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 12
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::QAB(E)
- R(d);N_GUARD,P_PINP(C)::QAB(E)
- R(d);N_GUARD::QAR1(E),XR(d)
- R(i);CHECK,OGATE::PXR(i)=Q
- R(i);OGATE::PXR(i)=Q
- S(a);::B(A)+K(D)
- S(a);::B(A)+K(D),XS(a)
- S(a);XP(B)::B(A)+K(D)
- S(j);::B(A)+K(D),XS(j)
- S(j);::B(A)+K(D)
- P(g);CHECK::B(A)+K(D)
- Tries
- Try
- B(I);
- Threat
- P=Q
- Vars
- R(i);CHECK,OGATE::PXR(i)=Q
- P(g);CHECK::B(A)+K(D)
- R(d);XB(I)::P=Q
- R(d);::P=Q
- R(d);P_PINP(C)::P=Q
- Refutation
- R(d);XQ(E)
- Try
- P(B);XR(d)
- Threat
- DUALS(3)
- Vars
- R(i);CHECK,OGATE::PXR(i)=Q
- P(g);CHECK::B(A)+K(D)
- Refutation
- R(i);XP(G)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- R(i);CHECK,OGATE::PXR(i)=Q
- P(g);CHECK::B(A)+K(D)
- Refutation
- R(d);XQ(E)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- R(i);CHECK,OGATE::PXR(i)=Q
- P(g);CHECK::B(A)+K(D)
- Refutation
- R(d);XQ(E)
- Try
- Actual
- K(D);P_SPINP(G),P_SPINQ(E),S_FLIGHT
- Vars
- R(d);CHECK,XQ(E)::B(A)+K(D),XR(d)
- R(i);CHECK,XP(G)::B(A)+K(D),XR(i)
- S(a);XP(B)::B(A)+K(D)
- R(d);N_PINQ(E)::QAB1(E)
- R(d);N_PINQ(E)::QAR1(E),XR(d)
- R(i);N_PINP(G)::PXR(i)=Q
- R(i);N_PINP(G),OGATE::PXR(i)=Q
- S(a);::B(A)+K(D)
- S(a);::B(A)+K(D),XS(a)
- S(j);::B(A)+K(D)
- S(j);::B(A)+K(D),XS(j)
- P(g);::B(A)+K(D)
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