MESON Chess Problem Database
Problem Display
PID: 201468 (1K3N1B/Q2p1B1b/8/2P1P2R/1p1k4/5Rbn/nP1NPp2/2r5 w - - 0 1)
Mosely, Arthur James
L'Alfiere di Re, 1922
#2
12 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.c6#
- 1...Rb1
- 2.c6#
- 1...Rd1
- 2.c6#
- 1...Re1
- 2.c6#
- 1...Rf1
- 2.c6#
- 1...Rg1
- 2.c6#
- 1...Rh1
- 2.c6#
- 1...Bxe5+
- 2.Bxe5#
- 1...Bc2
- 2.c6#
- 1...Bd3
- 2.Rxd3#
- 2.e3#
- 1...Be4
- 2.Sb3#
- 1...Bg8
- 2.Rd3#
- 1...Sc3
- 2.c6#
- 1...Sf4
- 2.e6#
- 1...d5
- 2.Se6#
- 1...Ra1
- Tries
- 1.Se6+?
- 1...Kd5
- 2.Qb7#
- 2.Qxd7#
- 2.Qa8#
- 1...dxe6!
- 1...Kd5
- 1.Sxh7?
- threat
- 2.Rd3#
- 1...Bxe5+
- 2.Bxe5#
- 1...Sf4
- 2.e6#
- 1...Rc3!
- threat
- 1.Bc4?
- threat
- 2.e3#
- 2.c6#
- 1...Bxe5+
- 2.Bxe5#
- 1...f1S
- 2.c6#
- 1...Re1
- 2.c6#
- 1...Rc3
- 2.c6#
- 1...Bf4
- 2.c6#
- 1...Rxc4!
- threat
- 1.Rc3?
- threat
- 2.Qxd7#
- 2.e3#
- 2.c6#
- 1...Bxe5+
- 2.Bxe5#
- 1...Sxc3
- 2.c6#
- 1...bxc3
- 2.c6#
- 1...Bd3
- 2.Rxd3#
- 2.c6#
- 1...f1S
- 2.Qxd7#
- 2.c6#
- 1...Re1
- 2.Qxd7#
- 2.c6#
- 1...Bf4
- 2.Qxd7#
- 2.c6#
- 1...Be4
- 2.Sb3#
- 2.e3#
- 2.c6#
- 1...Bf5
- 2.e3#
- 2.c6#
- 1...Sf4
- 2.e3#
- 2.c6#
- 2.e6#
- 1...d5
- 2.Se6#
- 2.e3#
- 2.c6#
- 2.cxd5 ep#
- 1...d6
- 2.e3#
- 2.cxd6#
- 2.c6#
- 1...Rxc3!
- threat
- 1.Qb6?
- threat
- 2.Qd6#
- 1...Be4
- 2.Sb3#
- 1...Sc3
- 2.Qxb4#
- 2.c6#
- 1...Sf4
- 2.e6#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Qxd6#
- 1...Rxc5!
- threat
- 1.Qb7?
- threat
- 2.Sb3#
- 2.Qd5#
- 1...Kxc5
- 2.Sb3#
- 1...Rxc5
- 2.Sb3#
- 1...Rc3
- 2.Qd5#
- 1...Bc2
- 2.Qd5#
- 1...Be4
- 2.Sb3#
- 1...Sc3
- 2.Sb3#
- 2.Qxb4#
- 1...Sf4
- 2.Sb3#
- 2.e6#
- 1...b3
- 2.Sxb3#
- 2.Qd5#
- 1...d5
- 2.Se6#
- 2.Qxd5#
- 1...Bxe5+!
- threat
- 1.Se6+?
- Keys
- 1.Qa6!
- threat
- 2.Qd6#
- 1...Kxc5
- 2.Sb3#
- 1...Rxc5
- 2.e3#
- 1...Be4
- 2.Sb3#
- 1...Sc3
- 2.Qc4#
- 1...Sf4
- 2.e6#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Qxd6#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::QAB(H)+P(E)
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::B(L),XB(d)
- B(i);S_CUTR(a)::QAB(H)+P(E)
- B(i);SBLOCK::S(B)
- B(i);N_GUARD::R1(D)
- S(b);S_CUTR(a)::QAB(H)+P(E)
- S(e);N_PINP(F)::B(L)+P(F)
- P(h);N_GUARD,SBLOCK::S(K)
- Tries
- Try
- S(K);CHECK
- Refutation
- P(h);XS(K)
- Try
- S(K);XB(i)
- Threat
- R1(D)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::B(L),XB(d)
- S(e);N_PINP(F)::B(L)+P(F)
- Refutation
- R(a);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::B(L),XB(d)
- P(c);::QAB(H)+P(E)
- R(a);::QAB(H)+P(E)
- B(d);::QAB(H)+P(E)
- Refutation
- R(a);XB(I)
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::B(L),XB(d)
- S(b);XR(D)::QAB(H)+P(E)
- P(f);XR(D)::QAB(H)+P(E)
- Refutation
- R(a);XR(D)
- Try
- Q(H);
- Threat
- QAR2(H)
- Vars
- B(i);SBLOCK::S(B)
- S(e);N_PINP(F)::B(L)+P(F)
- P(h);N_GUARD,SBLOCK::S(K)
- P(h);N_PINP(F)::QAR2(H),XP(h)
- Refutation
- R(a);P_SPINR(a),XP(E)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- K(g);S_FLIGHT,XP(E)::S(B)
- R(a);XP(E)::S(B)
- R(a);::QAR1(H)
- B(i);::QAR1(H)
- B(i);::S(B)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(F)
- Try
- Actual
- Q(H);
- Threat
- QAR2(H)
- Vars
- K(g);S_FLIGHT,XP(E)::S(B)
- R(a);SBLOCK,XP(E)::P(C)
- B(i);SBLOCK::S(B)
- S(b);S_CUTR(a)::QAR1(H)
- S(e);N_PINP(F)::B(L)+P(F)
- P(h);N_GUARD,SBLOCK::S(K)
- P(h);N_PINP(F)::QAR2(H),XP(h)
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