MESON Chess Problem Database

Problem Display
PID: 24960 (8/3N4/4R3/2p4K/3kp3/8/2Q5/8 w - - 0 1)

Petrusenko, Alexey Matveevich

Seliskaya zazema, 1978

8/3N4/4R3/2p4K/3kp3/8/2Q5/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxe4#
    • 1...e3
      • 2.Rd6#
    • 1...c4
      • 2.Qd2#
  • Tries
    • 1.Kh4?
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Kg5?
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Kg6?
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Kh6?
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Ra6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Rb6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Rc6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Rf6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Rg6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
    • 1.Rh6?
      • 1...Kd5
        • 2.Qxc5#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#
      • 1...Ke3!
  • Keys
    • 1.Kg4!
      • 1...Ke3
        • 2.Rxe4#
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Rd6#
      • 1...c4
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(A),XP(b)
    • P(b);SBLOCK::R(C)
    • P(c);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(A),XP(b)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(A),XP(b)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(A),XP(b)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(A),XP(b)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A),XP(c)
        • P(b);SBLOCK::R(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);P_SPINP(b),S_FLIGHT::R1(C),XP(b)
      • K(a);P-FLIGHT::QAB1(A),XP(b)
      • P(b);SBLOCK::R(C)
      • P(c);SBLOCK::QAR2(A)
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