MESON Chess Problem Database

Problem Display
PID: 72690 (1r2B2b/1P3pNp/N2k1P2/p2pp2p/rqQ4K/B7/8/2R4n w - - 0 1)

Foschini, Ettore

Good Companions (February), 1917

1r2B2b/1P3pNp/N2k1P2/p2pp2p/rqQ4K/B7/8/2R4n

#2

9 + 12

15 British Chess Magazine 1917
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Bxc5#
    • 1...Rc8
      • 2.bxc8S#
    • 1...dxc4
      • 2.Rd1#
    • 1...d4
      • 2.Sf5#
      • 2.Qc6#
    • 1...e4
      • 2.Qc7#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Qc6#
        • 2.Qc7#
      • 1...Rxb7
        • 2.Qc6#
      • 1...Bxg7
        • 2.Qc6#
      • 1...dxc4
        • 2.Rd1#
      • 1...e4
        • 2.Qc7#
      • 1...Qc5
        • 2.Bxc5#
        • 2.Qxc5#
      • 1...Rc8
        • 2.bxc8S#
      • 1...d4
        • 2.Sf5#
        • 2.Qc6#
      • 1...h6+!
    • 1.Kxh5?
      • threat
        • 2.Qc6#
        • 2.Qc7#
      • 1...Rxb7
        • 2.Qc6#
      • 1...Bxg7
        • 2.Qc6#
      • 1...dxc4
        • 2.Rd1#
      • 1...e4
        • 2.Qc7#
      • 1...Qc5
        • 2.Bxc5#
        • 2.Qxc5#
      • 1...Rc8
        • 2.bxc8S#
      • 1...d4
        • 2.Sf5#
        • 2.Qc6#
      • 1...Sg3+!
    • 1.Bxb4+?
      • 1...axb4
        • 2.Qc5#
        • 2.Qc6#
        • 2.Qc7#
      • 1...Rxb4!
    • 1.Rd1?
      • threat
        • 2.Rxd5#
      • 1...d4
        • 2.Sf5#
        • 2.Qc6#
      • 1...Bxg7!
    • 1.Qxb4+?
      • 1...axb4
        • 2.Rc6#
      • 1...Rxb4+!
    • 1.Qe4?
      • threat
        • 2.Rc6#
      • 1...dxe4
        • 2.Rd1#
      • 1...Qc5
        • 2.Bxc5#
      • 1...Rc8
        • 2.bxc8S#
      • 1...Rxe8!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Rc6#
      • 1...Rxe8
        • 2.Sxe8#
      • 1...d4
        • 2.Qd7#
      • 1...e4
        • 2.Qf4#
      • 1...Qc5
        • 2.Bxc5#
      • 1...Rc8
        • 2.bxc8S#

Anticipated by 264214(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(c);OGATE::B(B),XQ(c)
    • R(k);OGATE::PXR(k)=S
    • P(e);OGATEB,XQ(C)::R(A)
    • P(f);N_PINQ(C)::QAB1(C)
  • Tries
    • Try
      • K(D);N_SPINQ(C),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(k);XP(G)::QAR1(C)
        • B(l);XS(H)::QAR1(C)
        • P(e);OGATEB,XQ(C)::R(A)
        • P(f);::QAB1(C)
        • R(k);OGATE::PXR(k)=S
      • Refutation
        • P(j);CHECK
    • Try
      • K(D);N_SPINQ(C),P-FLIGHT,XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(k);XP(G)::QAR1(C)
        • B(l);XS(H)::QAR1(C)
        • P(e);OGATEB,XQ(C)::R(A)
        • P(f);::QAB1(C)
        • R(k);OGATE::PXR(k)=S
      • Refutation
        • S(a);CHECK
    • Try
      • B(B);CHECK,N_SPINQ(C),XQ(c)
      • Refutation
        • R(b);P_PINQ(C),XB(B)
    • Try
      • R(A);P_PINP(e)
      • Threat
        • R1(A),XP(e)
      • Refutation
        • B(l);XS(H)
    • Try
      • Q(C);CHECK,XQ(c)
      • Vars
        • P(d);P_SPINP(d),XQ(C)::R1(A)
      • Refutation
        • R(b);CHECK,P_SPINR(b),XQ(C)
    • Try
      • Q(C);
      • Threat
        • R1(A)
      • Vars
        • P(e);OGATEB,XQ(C)::R(A)
        • Q(c);OGATE::B(B),XQ(c)
        • R(k);OGATE::PXR(k)=S
      • Refutation
        • R(k);XB(I)
  • Actual
    • Q(C);
    • Threat
      • R1(A)
    • Vars
      • R(k);XB(I)::S(H),XR(k)
      • P(e);N_PINQ(C)::QAR1(C)
      • P(f);N_PINQ(C)::QAB(C)
      • Q(c);OGATE::B(B),XQ(c)
      • R(k);OGATE::PXR(k)=S
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