MESON Chess Problem Database

Problem Display
PID: 245973 (8/1Q6/3kp3/1K6/3N4/4B3/8/1B6 w - - 0 1)

Murashev, Pavel Aleksandrovich

Sem Shakhmatnikh not, 2014

8/1Q6/3kp3/1K6/3N4/4B3/8/1B6

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc6?
      • 1...Kd5
        • 2.Qd7#
      • 1...e5!
    • 1.Ba2?
      • 1...e5
        • 2.Sf5#
      • 1...Ke5!
    • 1.Bf5?
      • 1...exf5
        • 2.Bf4#
      • 1...e5
        • 2.Qd7#
      • 1...Ke5!
    • 1.Bc1?
      • 1...e5
        • 2.Ba3#
      • 1...Ke5!
    • 1.Bd2?
      • 1...e5
        • 2.Bb4#
      • 1...Ke5!
    • 1.Bg5?
      • 1...e5
        • 2.Be7#
        • 2.Qc6#
      • 1...Ke5!
    • 1.Bh6?
      • 1...e5
        • 2.Bf8#
      • 1...Ke5!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Qxe6#
      • 1...Ke7!
    • 1.Qc8?
      • 1...Kd5
        • 2.Qxe6#
        • 2.Qc5#
      • 1...Ke5
        • 2.Qxe6#
      • 1...e5
        • 2.Qd8#
      • 1...Ke7!
    • 1.Qc7+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxc7!
    • 1.Qd7+?
      • 1...Ke5
        • 2.Qxe6#
      • 1...Kxd7!
    • 1.Qe7+?
      • 1...Kd5
        • 2.Qc5#
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Kxe7!
  • Keys
    • 1.Qf7!
      • 1...Kd5
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qxe6#
      • 1...e5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Vars
        • P(b);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • P(b);N_GUARD,XB(A)::B(B)
        • P(b);SBLOCK::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • P(b);SBLOCK::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • P(b);SBLOCK::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • P(b);SBLOCK::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(E),XP(b)
        • P(b);SBLOCK::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAB1(E),XP(b)
      • K(a);S_FLIGHT::QAR1(E),XP(b)
      • P(b);N_GUARD,SBLOCK::S(C)
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