MESON Chess Problem Database

Problem Display
PID: 47476 (b2K4/2p1pB2/Np1bP1n1/1N1kpR2/5pP1/1pQ2P2/8/8 w - - 0 1)

Aschwanden, Reto

3rd HM., Casa-70 JT, 2002

b2K4/2p1pB2/Np1bP1n1/1N1kpR2/5pP1/1pQ2P2/8/8

#2

9 + 10

56 The Problemist 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Saxc7#
    • 1...Bb4
      • 2.Sxb4#
      • 2.Saxc7#
    • 1...Bc6
      • 2.Qd4#
      • 2.Qxb3#
      • 2.Qd3#
    • 1...c6
      • 2.Qd4#
      • 2.Qxb3#
      • 2.Qd3#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Qd4#
        • 2.Qxb3#
        • 2.Qd3#
      • 1...Bc6+
        • 2.Qxc6#
      • 1...Bc5
        • 2.Sbxc7#
        • 2.Saxc7#
        • 2.Qxb3#
      • 1...b2
        • 2.Qd4#
        • 2.Qb3#
        • 2.Qd3#
      • 1...c5
        • 2.Qd3#
      • 1...Sf8+!
    • 1.Be8?
      • threat
        • 2.Qxb3#
      • 1...Kxe6
        • 2.Bf7#
      • 1...b2
        • 2.Qb3#
      • 1...c5!
    • 1.Rxe5+?
      • 1...Bxe5
        • 2.Sb4#
      • 1...Sxe5!
  • Keys
    • 1.Sb8!
      • threat
        • 2.Qd4#
      • 1...Bc5
        • 2.Qxb3#
      • 1...c5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::S(F),XP(h)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • B(j);CHECK,N_GUARD::QAB1(A),XB(j)
        • P(h);::QAR2(A)
      • Refutation
        • S(g);CHECK
    • Try
      • B(H);
      • Threat
        • QAB(A),XP(a)
      • Vars
        • K(c);N_SPINP(d),OGATEB,S_FLIGHT,XP(G)::B(H)
        • P(a);::QAB(A)
      • Refutation
        • P(h);
    • Try
      • R(E);CHECK,XP(d)
      • Vars
        • B(f);XR(E)::S(F)
      • Refutation
        • S(g);XR(E)
  • Actual
    • S(F);
    • Threat
      • QAR1(A)
    • Vars
      • B(f);SBLOCK::QAB(A),XP(a)
      • P(h);SBLOCK::QAR2(A)
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