MESON Chess Problem Database

Problem Display
PID: 232991 (8/8/8/8/p7/Q2R4/3pk1K1/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2002

8/8/8/8/p7/Q2R4/3pk1K1/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd2+?
      • 1...Ke1
        • 2.Qc1#
        • 2.Qe3#
      • 1...Kxd2!
    • 1.Qb2?
      • threat
        • 2.Qxd2#
      • 1...Kd1
        • 2.Qxd2#
      • 1...Ke1
        • 2.Qxd2#
      • 1...Kxd3!
    • 1.Qb4?
      • threat
        • 2.Qxd2#
      • 1...Kd1
        • 2.Qxd2#
      • 1...Ke1
        • 2.Qxd2#
      • 1...d1Q
        • 2.Qe4#
      • 1...d1S
        • 2.Qd2#
      • 1...d1B
        • 2.Qd2#
        • 2.Qe4#
      • 1...d1R
        • 2.Qe4#
      • 1...Kxd3!
    • 1.Qa1?
      • threat
        • 2.Qf1#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Kxd3!
    • 1.Qa2?
      • threat
        • 2.Qxd2#
      • 1...Kd1
        • 2.Qxd2#
      • 1...Ke1
        • 2.Qxd2#
      • 1...Kxd3!
    • 1.Qb3?
      • threat
        • 2.Re3#
      • 1...Ke1
        • 2.Re3#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...axb3!
    • 1.Qxa4?
      • 1...Ke1
        • 2.Re3#
      • 1...d1Q
        • 2.Qxd1#
        • 2.Qe4#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
        • 2.Qe4#
      • 1...d1R
        • 2.Qxd1#
        • 2.Qe4#
      • 1...Kxd3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxd2#
      • 1...Kd1
        • 2.Qxd2#
      • 1...Ke1
        • 2.Qxd2#
      • 1...d1Q
        • 2.Re3#
      • 1...d1S
        • 2.Qd2#
      • 1...d1B
        • 2.Re3#
        • 2.Qd2#
      • 1...d1R
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XP(a)
      • Refutation
        • K(b);P-FLIGHT,XR(C)
    • Try
      • Q(B);P_PINP(a)
      • Threat
        • QAR1(B),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(B),XP(a)
        • K(b);N_SPINP(a),P-FLIGHT::QAB1(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(B),XP(a)
        • K(b);P-FLIGHT,P_SPINP(a)::QAB1(B),XP(a)
        • P(a);::QAR2(B)
        • P(a);::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(a);::QAB1(B),XQ(a)
        • P(a);::QAB1(B),XS(a)
        • P(a);::QAB1(B),XB(a)
        • P(a);::QAB1(B),XR(a)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
    • Try
      • Q(B);P_PINP(a)
      • Threat
        • QAR1(B),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(B),XP(a)
        • K(b);N_SPINP(a),P-FLIGHT::QAB1(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • R1(C)
      • Vars
        • K(b);P-FLIGHT::R(C)
        • P(a);::QAB1(B),XQ(a)
        • P(a);::QAB1(B),XS(a)
        • P(a);::QAB1(B),XB(a)
        • P(a);::QAB1(B),XR(a)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);XP(c)
      • Vars
        • K(b);P-FLIGHT::R(C)
        • P(a);::QAB1(B),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAR1(B),XP(a)
      • K(b);P-FLIGHT,P_SPINP(a)::QAB1(B),XP(a)
      • P(a);SBLOCK::R1(C)
      • P(a);::QAR1(B)
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