MESON Chess Problem Database

Problem Display
PID: 240273 (5R1n/2p2r2/2B1R1p1/5pPb/3pPk1K/3Q1P2/2N2p2/3n4 w - - 0 1)

Janevski, Zivko

Problem-Forum, 2006

5R1n/2p2r2/2B1R1p1/5pPb/3pPk1K/3Q1P2/2N2p2/3n4

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...fxe4
      • 2.Qxe4#
  • Tries
    • 1.Qd2+?
      • 1...Kxf3
        • 2.exf5#
        • 2.e5#
      • 1...Se3!
    • 1.Qxd4?
      • threat
        • 2.e5#
      • 1...Kxf3
        • 2.exf5#
      • 1...Bxf3
        • 2.Qe5#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Sc3
        • 2.Qe3#
      • 1...Rd7!
    • 1.exf5?
      • threat
        • 2.Qe4#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...gxf5
        • 2.Qxd4#
      • 1...Sc3!
  • Keys
    • 1.e5!
      • threat
        • 2.Qxd4#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...Rd7
        • 2.Qe4#
      • 1...Sc3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);OGATE,P_SPINR(i),XP(D)::QAR1(B),XP(e)
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(B);XP(c)
      • Threat
        • QAR(B)+P(D)
      • Vars
        • K(d);P-FLIGHT,XP(C)::B(G)+P(D),XP(e)
        • B(f);SBLOCK,XP(C)::QAB1(B)
        • P(e);OGATE,P_SPINP(e),P_SPINR(i),XP(D)::QAR1(B),XP(e)
        • S(a);N_GUARD::QAB1(B)
      • Refutation
        • R(i);P_SPINP(e)
    • Try
      • P(D);XP(e)
      • Threat
        • QAR1(B)
      • Vars
        • B(f);OGATE,XP(C)::QAR1(B),XB(f)
        • P(g);SBLOCK,XP(D)::QAR2(B),XP(c)
      • Refutation
        • S(a);
  • Actual
    • P(D);
    • Threat
      • QAR2(B),XP(c)
    • Vars
      • B(f);OGATE,XP(C)::QAR1(B),XB(f)
      • R(i);P_SPINP(e)::QAR1(B)
      • S(a);N_GUARD::QAB(B)
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