MESON Chess Problem Database

Problem Display
PID: 199910 (4N3/B2Np3/4p3/nP1kpP2/2p5/KPPn4/3QR2b/7b w - - 0 1)

Sukhodolov, Nikolai

Zadachi i Etyudi, 2017

4N3/B2Np3/4p3/nP1kpP2/2p5/KPPn4/3QR2b/7b

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Rxe5#
    • 1...cxb3
      • 2.Qxd3#
  • Tries
    • 1.Sef6+?
      • 1...Kd6
        • 2.Bb8#
      • 1...exf6!
    • 1.Bc5?
      • threat
        • 2.Sc7#
      • 1...cxb3
        • 2.Qxd3#
      • 1...e4!
    • 1.Qe3?
      • threat
        • 2.Sb6#
      • 1...e4
        • 2.Qd4#
      • 1...exf5!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qxe6#
      • 1...exf5
        • 2.Sc7#
      • 1...Sf4
        • 2.Rxe5#
      • 1...Sc5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::R1(B),XP(g)
    • P(d);N_GUARD,XP(D)::QAR2(A),XS(c)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(f);P-FLIGHT::B(H)
      • Refutation
        • P(i);XS(J)
    • Try
      • B(H);
      • Threat
        • S(J)
      • Vars
        • P(d);N_GUARD,XP(D)::QAR2(A),XS(c)
      • Refutation
        • P(g);
    • Try
      • Q(A);N_PINS(c)
      • Threat
        • S(I)
      • Vars
        • P(g);N_GUARD::QAR1(A)
      • Refutation
        • P(h);XP(G)
  • Actual
    • Q(A);N_PINS(c)
    • Threat
      • QAB1(A),XP(h)
    • Vars
      • P(h);XP(G)::S(J)
      • S(c);N_GUARD,S_CUTB(b)::R1(B),XP(g)
      • S(c);SBLOCK::S(I)
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