MESON Chess Problem Database

Problem Display
PID: 152501 (nq4r1/1p1R4/1p5n/1N1P1pP1/B1p2pNK/2B3pp/1bR1p3/3krb1Q w - - 0 1)

Pape, Edouard

Good Companions (December), 1915

nq4r1/1p1R4/1p5n/1N1P1pP1/B1p2pNK/2B3pp/1bR1p3/3krb1Q

#2

10 + 16

2658 Good Companions (Solving Ty.) 1915

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qxe1#
    • 1...Bc1
      • 2.Ra2#
      • 2.Rb2#
      • 2.Rd2#
    • 1...Bxc3
      • 2.Sxc3#
    • 1...g2
      • 2.Sf2#
    • 1...f3
      • 2.Se3#
  • Tries
    • 1.Bxb2?
      • threat
        • 2.Sc3#
      • 1...c3
        • 2.Sxc3#
      • 1...Qe5!
    • 1.Rxe2+?
      • 1...Kc1
        • 2.Rxe1#
      • 1...Kxe2!
    • 1.Qg1?
      • threat
        • 2.Qd4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Bc1
        • 2.Ra2#
        • 2.Rb2#
        • 2.Rd2#
      • 1...Qe5!
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Qxd6
        • 2.Rxd6#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bc1
        • 2.Ra2#
        • 2.Rb2#
        • 2.Rd2#
      • 1...Sc7
        • 2.dxc7#
      • 1...g2
        • 2.Sf2#
      • 1...f3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE,P_SPINR(b)::QAR1(A),XR(b)
    • B(d);XB(C)::S(G),XB(d)
    • P(f);N_GUARD::S(E)
    • P(i);N_GUARD::S(E)
  • Tries
    • Try
      • B(C);XB(d)
      • Threat
        • S(G)
      • Vars
        • P(h);::S(G),XP(h)
      • Refutation
        • Q(o);
    • Try
      • R(B);CHECK,XP(e)
      • Vars
        • K(a);P-FLIGHT::R(B),XR(b)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • B(d);XB(C)::S(G),XB(d)
      • Refutation
        • Q(o);
  • Actual
    • P(H);
    • Threat
      • QAR(A)
    • Vars
      • Q(o);OGATE,P_SPINQ(o),XP(H)::R(J),XQ(o)
      • B(d);XB(C)::S(G),XB(d)
      • B(c);OGATE,P_SPINR(b)::QAR1(A),XR(b)
      • S(n);OGATE::R(J)+P(H),XS(n)
      • P(f);N_GUARD::S(E)
      • P(i);N_GUARD::S(E)
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