MESON Chess Problem Database

Problem Display
PID: 167113 (8/4rp2/8/3B2Q1/4PP2/1N1k1K2/3P2P1/N7 w - - 0 1)

Kwiatkowski, Vitaly I

Sachmatija, 2010

8/4rp2/8/3B2Q1/4PP2/1N1k1K2/3P2P1/N7

#2

9 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1+?
      • 1...Kd4
        • 2.Sab3#
      • 1...Kxd2!
    • 1.Sc5+?
      • 1...Kd4
        • 2.Sab3#
      • 1...Kxd2!
    • 1.Be6?
      • threat
        • 2.Qb5#
        • 2.Qd5#
      • 1...fxe6
        • 2.Qb5#
      • 1...Rb7
        • 2.Qd5#
      • 1...Rc7
        • 2.Qd5#
      • 1...Rd7
        • 2.Qb5#
      • 1...f5!
    • 1.Qe5?
      • threat
        • 2.Qc3#
        • 2.Qd4#
      • 1...Rc7
        • 2.Qd4#
      • 1...Rxe5!
    • 1.Qf5?
      • threat
        • 2.e5#
      • 1...Rxe4
        • 2.Qxe4#
      • 1...Re5!
    • 1.e5?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
      • 1...Rxe5!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qc3#
        • 2.Qd4#
        • 2.Qa6#
      • 1...Rxe4
        • 2.Qc3#
      • 1...Re5
        • 2.Qa6#
      • 1...Re6
        • 2.Qc3#
        • 2.Qd4#
      • 1...Ra7
        • 2.Qc3#
        • 2.Qd4#
      • 1...Rb7
        • 2.Qc3#
        • 2.Qd4#
      • 1...Rc7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XB(H)::QAB(I)
        • R(b);::QAR2(I)
        • R(b);::QAB(I)
      • Refutation
        • P(c);
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAR1(I)
      • Refutation
        • R(b);XQ(I)
    • Try
      • Q(I);
      • Threat
        • QAB(I)+P(F)
      • Vars
        • R(b);OGATE,P_SPINR(b),XP(F)::QAB1(I),XR(b)
      • Refutation
        • R(b);
    • Try
      • P(F);
      • Threat
        • QAB(I)
      • Vars
        • P(c);::QAB(I),XP(c)
      • Refutation
        • R(b);XP(F)
  • Actual
    • Q(I);
    • Threat
      • DUALS(3)
    • Vars
      • R(b);XP(F)::QAR1(I)
      • R(b);::QAB(I)
      • R(b);::QAR1(I)
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