MESON Chess Problem Database
Problem Display
PID: 109612 (4R2q/P1Q2n1p/4rp1p/3b1Rp1/2pk4/3Pp1N1/1Kp1P1r1/2B4B w - - 0 1)
Verheye, Raymond
Canadian Chess Chat, 1981
#2
10 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Rxd5#
- 1...Rxe2
- 2.Rxd5#
- 1...Rf2
- 2.Rxd5#
- 1...Rh2
- 2.Rxd5#
- 1...Rxg3
- 2.Rxd5#
- 1...Re4
- 2.Qb6#
- 1...Re5
- 2.Qb6#
- 1...Ra6
- 2.Bxe3#
- 1...Rb6+
- 2.Qxb6#
- 1...Rc6
- 2.Bxe3#
- 1...Rd6
- 2.Bxe3#
- 1...Re7
- 2.Qb6#
- 1...Rxe8
- 2.Qb6#
- 1...Bf3
- 2.Qxc4#
- 2.Qc5#
- 1...Be4
- 2.Qxc4#
- 2.Qc5#
- 1...Bc6
- 2.Qb6#
- 1...Bb7
- 2.Qxc4#
- 2.Qc5#
- 1...Ba8
- 2.Qxc4#
- 2.Qc5#
- 1...Sd6
- 2.Qb6#
- 1...cxd3
- 2.Qc3#
- 1...c3+
- 2.Qxc3#
- 1...Rg1
- Tries
- 1.Bxe3+?
- 1...Rxe3
- 2.Qb6#
- 1...Kxe3!
- 1...Rxe3
- 1.Bxg2?
- threat
- 2.Rxd5#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...Bxg2
- 2.Qxc4#
- 2.Qc5#
- 1...Re4
- 2.Qb6#
- 1...Re5
- 2.Qb6#
- 1...Rd6
- 2.Bxe3#
- 1...Bf3
- 2.Qxc4#
- 2.Qc5#
- 1...Be4
- 2.Qxc4#
- 2.Qc5#
- 1...Bc6
- 2.Qb6#
- 1...Bb7
- 2.Qxc4#
- 2.Qc5#
- 1...Ba8
- 2.Qxc4#
- 2.Qc5#
- 1...Se5!
- threat
- 1.Rf4+?
- 1...Re4
- 2.Sf5#
- 2.Qb6#
- 1...gxf4
- 2.Sf5#
- 1...Be4!
- 1...Re4
- 1.Re5?
- threat
- 2.Sf5#
- 2.Bxe3#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...Rxe2
- 2.Rxd5#
- 1...Rxg3
- 2.Rxd5#
- 1...Rxe5
- 2.Qb6#
- 1...Sxe5
- 2.Sf5#
- 1...fxe5
- 2.Sf5#
- 1...Rc6
- 2.Bxe3#
- 1...Rf2
- 2.Bxe3#
- 2.Rxd5#
- 1...Be4
- 2.Qc5#
- 1...f5
- 2.Sxf5#
- 2.Bxe3#
- 1...Sd6!
- threat
- 1.Rxe6?
- threat
- 2.Bxe3#
- 2.Qb6#
- 1...c3+
- 2.Qxc3#
- 1...Rxe2
- 2.Rxd5#
- 1...Rxg3
- 2.Rxd5#
- 2.Qb6#
- 1...Bxe6
- 2.Qb6#
- 2.Qc5#
- 1...cxd3
- 2.Bxe3#
- 2.Qc3#
- 1...Qc8
- 2.Bxe3#
- 1...Qd8
- 2.Bxe3#
- 1...Qf8
- 2.Bxe3#
- 1...Be4
- 2.Rxe4#
- 2.Qb6#
- 2.Qxc4#
- 2.Qc5#
- 1...Se5
- 2.Qb6#
- 1...Qb8+!
- threat
- 1.Qa5?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...cxd3
- 2.Qc3#
- 2.Qxd5#
- 1...Re5
- 2.Qb6#
- 1...Rd6
- 2.Bxe3#
- 1...Bf3
- 2.Qc3#
- 2.Qc5#
- 1...Be4
- 2.Qc3#
- 2.Qc5#
- 1...Bc6
- 2.Qc3#
- 2.Qb6#
- 2.Qc5#
- 1...Bb7
- 2.Qc3#
- 2.Qc5#
- 1...Ba8
- 2.Qc3#
- 2.Qc5#
- 1...Se5!
- threat
- 1.a8Q?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...Bxa8
- 2.Qxc4#
- 2.Qc5#
- 1...Rc6
- 2.Bxe3#
- 1...Re5
- 2.Qb6#
- 2.Qca7#
- 2.Qaa7#
- 1...Rd6
- 2.Bxe3#
- 1...Bf3
- 2.Qxc4#
- 2.Qc5#
- 1...Be4
- 2.Qxc4#
- 2.Qc5#
- 1...Bc6
- 2.Qb6#
- 2.Qca7#
- 2.Qaa7#
- 1...Bb7
- 2.Qxc4#
- 2.Qc5#
- 1...Se5!
- threat
- 1.a8B?
- threat
- 2.Rxd5#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...Bxa8
- 2.Qxc4#
- 2.Qc5#
- 1...Rc6
- 2.Bxe3#
- 1...Re5
- 2.Qb6#
- 2.Qa7#
- 1...Rd6
- 2.Bxe3#
- 1...Bf3
- 2.Qxc4#
- 2.Qc5#
- 1...Be4
- 2.Qxc4#
- 2.Qc5#
- 1...Bc6
- 2.Qb6#
- 2.Qa7#
- 1...Bb7
- 2.Qxc4#
- 2.Qc5#
- 1...Se5!
- threat
- 1.Bxe3+?
- Keys
- 1.Rxg5!
- threat
- 2.Sf5#
- 1...Rb6+
- 2.Qxb6#
- 1...c3+
- 2.Qxc3#
- 1...Rxe2
- 2.Rxd5#
- 1...Rxg3
- 2.Rxd5#
- 1...cxd3
- 2.Qc3#
- 1...Rc6
- 2.Bxe3#
- 1...Rf2
- 2.Rxd5#
- 1...Re5
- 2.Qb6#
- 1...Bf3
- 2.Qxc4#
- 2.Qc5#
- 1...Be4
- 2.Qxc4#
- 2.Qc5#
- 1...Bc6
- 2.Qb6#
- 1...Bb7
- 2.Qxc4#
- 2.Qc5#
- 1...Ba8
- 2.Qxc4#
- 2.Qc5#
- 1...Sd6
- 2.Qb6#
- 1...f5
- 2.Sxf5#
- threat
- 1.Rxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(b);::R1(G),XB(f)
- R(b);XP(D)::R1(G),XB(f)
- R(b);XS(F)::R1(G),XB(f)
- R(h);N_GUARD::QAB(I)
- R(h);N_GUARD::B(A),XP(c)
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- R(h);N_GUARD,XR(J)::QAB(I)
- B(f);S_CUTR(h)::QAB(I)
- S(k);S_CUTR(h)::QAB(I)
- P(d);OGATE,XP(E)::QAB1(I)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- Tries
- Try
- B(A);CHECK,XP(c)
- Vars
- R(h);XB(A)::QAB(I)
- Refutation
- K(e);P_SPINR(h),S_FLIGHT,XB(A)
- Try
- B(B);XR(b)
- Threat
- R1(G),XB(f)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(h);N_GUARD::QAB(I)
- R(h);N_GUARD::B(A),XP(c)
- B(f);S_CUTR(h)::QAB(I)
- Refutation
- S(k);
- Try
- R(G);CHECK
- Vars
- P(g);XR(G)::S(F)
- Refutation
- B(f);P_SPINB(f)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(b);XP(D)::R1(G),XB(f)
- R(b);XS(F)::R1(G),XB(f)
- R(h);N_GUARD,XR(G)::QAB(I)
- S(k);XR(G)::S(F)
- P(i);XR(G)::S(F)
- R(h);::B(A),XP(c)
- B(f);::QAB1(I)
- Refutation
- S(k);
- Try
- R(J);XR(h)
- Threat
- DUALS(2)
- Vars
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(b);XP(D)::R1(G),XB(f)
- Q(m);::B(A),XP(c)
- S(k);::QAB(I)
- Refutation
- Q(m);CHECK
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK::QAB1(I),XP(d)
- R(h);N_GUARD::QAB(I)
- R(h);N_GUARD::B(A),XP(c)
- Refutation
- S(k);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(h);N_GUARD::B(A),XP(c)
- Refutation
- S(k);
- Try
- P(H);
- Threat
- R1(G),XB(f)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(h);N_GUARD::B(A),XP(c)
- Refutation
- S(k);
- Try
- Actual
- R(G);XP(g)
- Threat
- S(F)
- Vars
- R(h);CHECK,N_GUARD::QAB(I),XR(h)
- P(d);CHECK,OGATE::QAB1(I),XP(d)
- R(b);XP(D)::R1(G),XB(f)
- R(b);XS(F)::R1(G),XB(f)
- P(d);OGATE,XP(E)::QAB1(I)
- R(h);N_GUARD::B(A),XP(c)
- R(b);::R1(G),XB(f)
- R(h);N_GUARD::QAB(I)
- B(f);S_CUTR(h)::QAB(I)
- S(k);S_CUTR(h)::QAB(I)
- P(i);::S(F),XP(i)
Developed and maintained by Brian Stephenson.
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