MESON Chess Problem Database

Problem Display
PID: 17592 (8/8/1B6/8/1kp5/1pN5/1K4Q1/8 w - - 0 1)

Pugachev, Sergey Timofeevich

Zatejnik, 1947

8/8/1B6/8/1kp5/1pN5/1K4Q1/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Tries
    • 1.Ka1?
      • 1...b2+
        • 2.Qxb2#
      • 1...Ka3
        • 2.Bc5#
      • 1...Kxc3!
    • 1.Kb1?
      • 1...Ka3
        • 2.Bc5#
      • 1...b2
        • 2.Qxb2#
      • 1...Kxc3!
    • 1.Ba5+?
      • 1...Kc5
        • 2.Qd5#
      • 1...Kxa5!
    • 1.Bc5+?
      • 1...Ka5
        • 2.Qa8#
      • 1...Kxc5!
  • Keys
    • 1.Kc1!
      • 1...b2+
        • 2.Qxb2#
      • 1...Ka3
        • 2.Bc5#
      • 1...Kxc3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(a);CHECK,OGATEB::QAR2(B),XP(a)
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(D)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • B(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT,XB(D)
    • Try
      • B(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR(B)
      • Refutation
        • K(b);S_FLIGHT,XB(D)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • P(a);CHECK,OGATEB::QAR2(B),XP(a)
      • K(b);S_FLIGHT::B(D)
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
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