MESON Chess Problem Database

Problem Display
PID: 159107 (4nR2/8/5b2/4N3/4p2B/2K1N1r1/3P1kp1/n2Q4 w - - 0 1)

Handloser, Ralf Chris

5th HM., idee & form, 2008-2009

4nR2/8/5b2/4N3/4p2B/2K1N1r1/3P1kp1/n2Q4

#2

7 + 7

15527 schachkunst (1997-2010) (Hoffmann) 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Rxf6#
    • 1...g1S
      • 2.Qf1#
    • 1...g1B
      • 2.Qf1#
  • Tries
    • 1.Kb4?
      • threat
        • 2.S3g4#
        • 2.S5g4#
      • 1...g1Q
        • 2.S5g4#
      • 1...g1S
        • 2.S5g4#
        • 2.Qf1#
      • 1...g1B
        • 2.S5g4#
        • 2.Qf1#
      • 1...g1R
        • 2.S5g4#
      • 1...Sc2+!
    • 1.Kc4?
      • threat
        • 2.S3g4#
        • 2.S5g4#
      • 1...g1Q
        • 2.S5g4#
      • 1...g1S
        • 2.S5g4#
        • 2.Qf1#
      • 1...g1B
        • 2.S5g4#
        • 2.Qf1#
      • 1...g1R
        • 2.S5g4#
      • 1...Sd6+!
    • 1.d3?
      • threat
        • 2.Sg4#
      • 1...Kxe3
        • 2.Qd2#
      • 1...g1Q
        • 2.Qd2#
      • 1...g1B
        • 2.Qd2#
      • 1...g1R
        • 2.Qd2#
      • 1...g1S!
  • Keys
    • 1.d4!
      • threat
        • 2.Sg4#
      • 1...Kxe3
        • 2.Qd2#
      • 1...exd4 ep
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(g);N_GUARD::R(G),XB(f)
    • P(c);N_GUARD::QAR1(A)
  • Tries
    • Try
      • K(C);N_SPINS(D),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(F)
      • Refutation
        • S(a);CHECK
    • Try
      • K(C);N_SPINS(D),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(F)
      • Refutation
        • S(g);CHECK
    • Try
      • P(B);N_SPINS(D),P_SPINS(F)
      • Threat
        • S(D)
      • Vars
        • K(b);N_SPINB(f),N_SPINR(d),S_FLIGHT,XS(D)::QAB1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • P(B);
    • Threat
      • S(F)
    • Vars
      • K(b);N_SPINB(f),N_SPINR(d),S_FLIGHT,XS(D)::QAB1(A)
      • P(e);EP,N_PINS(D),P_PINS(F),XP(B)::S(D)
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