MESON Chess Problem Database

Problem Display
PID: 21157 (r1n1K3/p4nB1/1p1p1P2/7b/2PkBR2/3Nrp2/4P3/2R3Q1 w - - 0 1)

Guidelli, Giorgio

2nd Prize, Good Companions (January), 1917

r1n1K3/p4nB1/1p1p1P2/7b/2PkBR2/3Nrp2/4P3/2R3Q1

#2

10 + 10

3132 The Good Companion Two-Mover 1922
3098 FIDE Album (1914-1944) (I) 1971
56 The Problemist 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Se5+
      • 2.Bg6#
    • 1...Sg5+
      • 2.f7#
    • 1...Sh6+
      • 2.f7#
    • 1...Sd8+
      • 2.f7#
    • 1...Sh8+
      • 2.f7#
    • 1...Se7+
      • 2.Bxa8#
  • Tries
    • 1.Kf8?
      • threat
        • 2.Bxf3#
        • 2.Bd5#
        • 2.Bf5#
        • 2.Bc6#
        • 2.Bg6#
        • 2.Bb7#
        • 2.Bh7#
        • 2.Bxa8#
      • 1...Se7+
        • 2.Bxa8#
      • 1...fxe2
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bh7#
      • 1...Rb8
        • 2.Bxf3#
        • 2.Bd5#
        • 2.Bf5#
        • 2.Bc6#
        • 2.Bg6#
        • 2.Bb7#
        • 2.Bh7#
        • 2.Ba8#
      • 1...Bg6
        • 2.Bf5#
        • 2.Bxg6#
      • 1...Sg5
        • 2.f7#
      • 1...d5
        • 2.Bxf3#
        • 2.Bxd5#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bh7#
      • 1...f2!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Qa1#
      • 1...Se5+
        • 2.Bg6#
      • 1...Sg5+
        • 2.f7#
      • 1...Sh6+
        • 2.f7#
      • 1...Sd8+
        • 2.f7#
      • 1...Sh8+
        • 2.f7#
      • 1...Se7+
        • 2.Bxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(h);CHECK,N_PINB(F)::R(G)+B(F)
    • S(h);CHECK,OGATE::B(I)+P(H)
    • S(j);CHECK,N_PINB(F)::R(G)+B(F),XR(i)
  • Tries
    • Try
      • K(J);N_SPINB(F),P-FLIGHT
      • Threat
        • DUALS(8)
      • Vars
        • S(j);CHECK::R(G)+B(F),XR(i)
        • S(h);OGATE::B(I)+P(H)
      • Refutation
        • P(b);N_SPINR(a)
  • Actual
    • R(A);
    • Threat
      • QAB(B)
    • Vars
      • S(h);CHECK,N_PINB(F)::R(G)+B(F)
      • S(h);CHECK,OGATE::B(I)+P(H)
      • S(j);CHECK,N_PINB(F)::R(G)+B(F),XR(i)
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