MESON Chess Problem Database

Problem Display
PID: 245502 (2B5/5NK1/5N2/8/6pk/8/8/6R1 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2002

2B5/5NK1/5N2/8/6pk/8/8/6R1

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Rh1#
  • Tries
    • 1.Kg6?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Kh6?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Kh7?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Kf8?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Kg8?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Kh8?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Se4?
      • threat
        • 2.Rh1#
      • 1...Kh5
        • 2.Rh1#
      • 1...Kh3!
    • 1.Sxg4?
      • 1...Kh5
        • 2.Rh1#
      • 1...Kh3!
    • 1.Sd5?
      • 1...Kh5
        • 2.Rh1#
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Sh5?
      • threat
        • 2.Rh1#
      • 1...Kxh5
        • 2.Rh1#
      • 1...Kh3!
    • 1.Sh7?
      • 1...Kh5
        • 2.Rh1#
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Se8?
      • 1...Kh5
        • 2.Rh1#
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Sg8?
      • 1...Kh5
        • 2.Rh1#
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Se5?
      • 1...Kg5
        • 2.Rxg4#
      • 1...g3
        • 2.Sf3#
      • 1...Kh3!
    • 1.Bf5?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Ba6?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Be6?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Bb7?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
    • 1.Bd7?
      • 1...g3
        • 2.Rh1#
      • 1...Kh3!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rxg4#
      • 1...Kxg5
        • 2.Rxg4#
      • 1...g3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::R(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);
      • Threat
        • R(A)
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);XP(a)
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R(A)
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);
      • Threat
        • R(A)
      • Vars
        • K(b);P-FLIGHT,XS(B)::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R(A)
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R(A)
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R(A)
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(C);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(A),XP(a)
        • P(a);N_GUARD::S(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(E);
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(E);
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(E);
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(E);
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(E);
      • Vars
        • P(a);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
  • Actual
    • S(C);
    • Threat
      • R1(A),XP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XS(C)::R1(A),XP(a)
      • P(a);N_GUARD::S(C)
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