MESON Chess Problem Database

Problem Display
PID: 105814 (8/8/8/5K1P/7k/6Nr/6R1/7Q w - - 0 1)

Kolpakov, Viktor Sergeevich

Chepizhni-60 JT (Kudesnik), 1994

8/8/8/5K1P/7k/6Nr/6R1/7Q

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh2
      • 2.Qxh2#
  • Tries
    • 1.Kf4?
      • 1...Rh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Rxh1!
    • 1.Sf1?
      • 1...Kxh5
        • 2.Qxh3#
      • 1...Rh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Rxh1!
    • 1.Se2?
      • 1...Kxh5
        • 2.Qxh3#
      • 1...Rh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Rxh1!
    • 1.Se4?
      • 1...Kxh5
        • 2.Qxh3#
      • 1...Rh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Rxh1!
    • 1.Rg1?
      • threat
        • 2.Qe4#
      • 1...Rh2
        • 2.Qxh2#
      • 1...Rxh1!
    • 1.Rh2?
      • threat
        • 2.Rxh3#
      • 1...Rxh2
        • 2.Qxh2#
      • 1...Kxg3!
    • 1.Qd1?
      • threat
        • 2.Qa4#
        • 2.Qg4#
        • 2.Qd4#
        • 2.Qd8#
      • 1...Rh1
        • 2.Qg4#
        • 2.Qxh1#
      • 1...Rh2
        • 2.Qg4#
      • 1...Rxg3!
    • 1.Qg1?
      • threat
        • 2.Qd4#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Rxg3!
    • 1.h6?
      • 1...Rh2
        • 2.Qxh2#
      • 1...Rxh1!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qb4#
        • 2.Qe4#
        • 2.Qe7#
      • 1...Rxg3
        • 2.Rh2#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rh2
        • 2.Rxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATEB::QAR2(A),XR(a)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR2(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR2(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR2(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
    • Try
      • R(B);
      • Threat
        • QAR(A)
      • Vars
        • R(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
    • Try
      • R(B);
      • Threat
        • R1(B),XR(a)
      • Vars
        • R(a);OGATE,XR(B)::QAR2(A),XR(a)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT,XS(C)
    • Try
      • Q(A);N_PINR(a)
      • Threat
        • DUALS(4)
      • Vars
        • R(a);::QAR1(A)
      • Refutation
        • R(a);XS(C)
    • Try
      • Q(A);N_PINR(a)
      • Threat
        • QAR(A)
      • Vars
        • R(a);OGATEB::QAR(A),XR(a)
      • Refutation
        • R(a);XS(C)
    • Try
      • P(E);
      • Vars
        • R(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
  • Actual
    • Q(A);N_PINR(a)
    • Threat
      • DUALS(3)
    • Vars
      • R(a);OGATEB,P_SPINR(a),XS(C)::R(B)
      • R(a);OGATEB::QAR(A),XR(a)
      • R(a);OGATEB::R(B),XR(a)
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