MESON Chess Problem Database

Problem Display
PID: 255792 (2b1N1K1/6b1/4k3/3r2Bp/6R1/8/q3B1Q1/4R3 w - - 0 1)

Kovacevic, Marjan

Vasilenko, Anatoly Grigorovich

3rd HM., Mansfield-125 MT (Kudesnik), 2021

2b1N1K1/6b1/4k3/3r2Bp/6R1/8/q3B1Q1/4R3

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe4#
    • 1...Kf5
      • 2.Qe4#
    • 1...hxg4
      • 2.Bxg4#
  • Tries
    • 1.Bc4+?
      • 1...Kf5
        • 2.Qe4#
      • 1...Kd7
        • 2.Qxd5#
      • 1...Qe2
        • 2.Qxd5#
      • 1...Be5!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Bg4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kd7
        • 2.Bb5#
      • 1...Qxe2
        • 2.Qxd5#
      • 1...Re5
        • 2.Sxg7#
      • 1...Rf5
        • 2.Bc4#
      • 1...Be5
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(d);N_GUARD,P-FLIGHT,S_CUTB(e),S_CUTR(b)::QAR1(C)
    • K(d);N_GUARD,S_CUTB(e),S_CUTR(b),S_FLIGHT::QAB1(C)
    • P(c);OGATE,XR(D)::R(A)+B(B),DCHECK,XP(c)
  • Tries
    • Try
      • B(B);CHECK,P_PINR(b)
      • Vars
        • K(d);N_GUARD,N_SPINR(b),S_CUTB(e),S_FLIGHT::QAB1(C)
        • K(d);N_SPINR(b),S_FLIGHT::QAR2(C),XR(b)
        • Q(a);P_SPINQ(a)::QAB1(C),XR(b)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • R(D);
    • Threat
      • R(A)+B(B),DCHECK
    • Vars
      • K(d);N_GUARD,P-FLIGHT,S_CUTB(e),S_CUTR(b)::QAR1(C)
      • K(d);N_GUARD,S_CUTB(e),S_CUTQ(a),S_CUTR(b),S_FLIGHT::B(B)
      • K(d);N_GUARD,P_SPINR(b),S_CUTB(e),S_CUTQ(a),S_FLIGHT::B(B)
      • Q(a);N_GUARD,P_SPINQ(a),XB(B)::QAB1(C),XR(b)
      • R(b);SBLOCK::S(F),XB(e)
      • R(b);SBLOCK::R(A)+B(B),DCHECK
      • B(e);SBLOCK,S_CUTR(b)::QAB(C)
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