MESON Chess Problem Database

Problem Display
PID: 61128 (8/Kn3b2/p3pN1p/r3pk1P/2N4Q/3nRp2/6P1/5rb1 w - - 0 1)

Guidelli, Giorgio

Good Companions (December), 1918

8/Kn3b2/p3pN1p/r3pk1P/2N4Q/3nRp2/6P1/5rb1

#2

7 + 12

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3+
      • 2.Sxe3#
    • 1...Sf2
      • 2.Rxf3#
    • 1...Sf4
      • 2.g4#
    • 1...Sdc5
      • 2.Rxe5#
    • 1...Sbc5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sxh6#
      • 1...Bxe3+
        • 2.Sgxe3#
      • 1...Kf4
        • 2.Sxh6#
      • 1...Bxh5!
    • 1.Sg8?
      • threat
        • 2.Sxh6#
        • 2.Se7#
      • 1...Bxe3+
        • 2.Sxe3#
      • 1...Bxh5
        • 2.Se7#
      • 1...Bxg8!
  • Keys
    • 1.Sh7!
      • threat
        • 2.Qe4#
      • 1...Bxe3+
        • 2.Sxe3#
      • 1...Sf2
        • 2.Rxf3#
      • 1...Sf4
        • 2.g4#
      • 1...Sdc5
        • 2.Rxe5#
      • 1...Sbc5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(b);CHECK,XR(B)::S(C),XB(b)
    • S(c);N_PINR(B)::R(B),XP(d)
    • S(c);SBLOCK::P(A)
    • S(c);N_PINR(B)::R1(B),XP(f)
    • S(k);N_GUARD,N_PINR(B)::S(C)
    • S(k);N_GUARD::S(C),XS(k)
    • S(k);N_GUARD::S(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F),XP(j)
      • Vars
        • B(b);CHECK,XR(B)::S(F),XB(b)
        • K(g);P-FLIGHT::QAR(D)+S(F),XP(j)
      • Refutation
        • B(l);XP(E)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,XR(B)::S(C),XB(b)
        • B(l);XP(E)::S(F)
      • Refutation
        • B(l);XS(F)
  • Actual
    • S(F);
    • Threat
      • QAB1(D)
    • Vars
      • B(b);CHECK,XR(B)::S(C),XB(b)
      • S(c);N_PINR(B)::R(B),XP(d)
      • S(c);SBLOCK::P(A)
      • S(c);N_PINR(B)::R1(B),XP(f)
      • S(k);N_GUARD,N_PINR(B)::S(C)
      • S(k);N_GUARD::S(C),XS(k)
      • P(f);::QAB1(D),XP(f)
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