MESON Chess Problem Database

Problem Display
PID: 227150 (8/2pp1K2/Q2p4/RNP1Nk2/6R1/8/8/8 w - - 0 1)

Moen, Kabe

StrateGems, 2020

8/2pp1K2/Q2p4/RNP1Nk2/6R1/8/8/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...dxc5
      • 2.Qf6#
    • 1...dxe5
      • 2.Qg6#
    • 1...d5
      • 2.Qf6#
  • Tries
    • 1.Raa4?
      • 1...Kxe5
        • 2.Rg5#
      • 1...dxc5
        • 2.Qf6#
      • 1...dxe5
        • 2.Qf6#
        • 2.Qg6#
      • 1...d5
        • 2.Qf6#
      • 1...c6!
    • 1.Qc6?
      • threat
        • 2.Qe4#
      • 1...Kxe5
        • 2.Qe4#
      • 1...d5
        • 2.Qf6#
      • 1...dxc6!
    • 1.cxd6?
      • threat
        • 2.Sd4#
      • 1...Kxe5
        • 2.Sxc7#
      • 1...c5!
  • Keys
    • 1.Sxc7!
      • 1...Kxe5
        • 2.cxd6#
      • 1...dxc5
        • 2.Qf6#
      • 1...dxe5
        • 2.Qg6#
      • 1...d5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE,XP(D)::QAR1(F)
    • P(b);OGATE,SBLOCK,XS(E)::QAB1(F)
    • P(b);OGATE::QAR1(F)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,XS(E)::R(A)
        • P(b);OGATE,XP(D)::QAR1(F)
        • P(b);OGATE::QAR1(F)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);P-FLIGHT,XS(E)::QAR1(F)
        • P(b);OGATE::QAR1(F)
      • Refutation
        • P(d);XQ(F)
    • Try
      • P(D);XP(b)
      • Threat
        • S(C)
      • Vars
        • K(a);P-FLIGHT,XS(E)::R(B)+S(C),XP(c)
      • Refutation
        • P(c);
  • Actual
    • S(C);XP(c)
    • Vars
      • K(a);P-FLIGHT,XS(E)::R(B)+P(D),XP(b)
      • P(b);OGATE,XP(D)::QAR1(F)
      • P(b);OGATE,SBLOCK,XS(E)::QAB1(F)
      • P(b);OGATE::QAR1(F)
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