MESON Chess Problem Database

Problem Display
PID: 200305 (3R4/4b3/1NPpR1B1/K3pr1p/b2Pk3/1pp1pNP1/4Q1P1/8 w - - 0 1)

Janevski, Zivko

Sachova skladba, 2013

3R4/4b3/1NPpR1B1/K3pr1p/b2Pk3/1pp1pNP1/4Q1P1/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Rxe5#
  • Tries
    • 1.Se1?
      • threat
        • 2.Qd3#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bb5!
    • 1.Sd2+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...cxd2!
    • 1.Sg5+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bxg5!
    • 1.Qc4?
      • threat
        • 2.dxe5#
        • 2.d5#
      • 1...e2
        • 2.Qxe2#
      • 1...d5
        • 2.Rxe5#
      • 1...Bb5!
    • 1.dxe5?
      • threat
        • 2.Qc4#
      • 1...Bb5
        • 2.exd6#
      • 1...d5!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qd3#
      • 1...Kxd4
        • 2.Qc4#
      • 1...dxe5
        • 2.Rxe5#
      • 1...Bb5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(i);N_GUARD::R1(I),XP(f)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);N_SPINP(c),N_SPINR(g),OGATEB,P-FLIGHT,P_SPINP(i),XP(E)::QAR1(A)
      • Refutation
        • B(d);
    • Try
      • S(C);CHECK
      • Vars
        • K(e);N_SPINP(c),N_SPINR(g),P-FLIGHT,P_SPINP(i),XP(E)::QAR1(A)
      • Refutation
        • P(b);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(e);N_SPINP(c),N_SPINR(g),P-FLIGHT,P_SPINP(i),XP(E)::QAR1(A)
      • Refutation
        • B(j);XS(C)
    • Try
      • Q(A);N_PINP(c),P_PINP(f)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATEB::QAR2(A),XP(c)
        • P(i);N_GUARD::R1(I),XP(f)
      • Refutation
        • B(d);
    • Try
      • P(E);P_SPINP(E),XP(f)
      • Threat
        • QAR2(A)
      • Vars
        • B(d);N_PINP(E)::R(I)+P(E),XP(i)
      • Refutation
        • P(i);N_PINP(E)
  • Actual
    • S(C);P_SPINS(C),XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • K(e);N_SPINP(c),N_SPINR(g),OGATEB,P-FLIGHT,P_SPINP(i),XP(E)::QAR1(A)
      • P(i);OGATE,XS(C)::R1(I),XP(i)
      • B(d);N_PINS(C)::R(I)+S(C)
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