MESON Chess Problem Database

Problem Display
PID: 11098 (8/8/2K5/8/1k6/2Rp4/3B4/3B4 w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1936

8/8/2K5/8/1k6/2Rp4/3B4/3B4

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Ra3#
  • Tries
    • 1.Kb7?
      • 1...Ka5
        • 2.Rc5#
      • 1...Kb5!
    • 1.Bc2?
      • 1...Ka5
        • 2.Ra3#
      • 1...dxc2!
    • 1.Bf3?
      • 1...Ka5
        • 2.Ra3#
      • 1...Ka4!
    • 1.Bg4?
      • 1...Ka5
        • 2.Ra3#
      • 1...Ka4!
    • 1.Bh5?
      • 1...Ka5
        • 2.Ra3#
      • 1...Ka4!
    • 1.Be1?
      • 1...Ka5
        • 2.Ra3#
      • 1...d2!
    • 1.Ra3+?
      • 1...Kc4
        • 2.Ra4#
      • 1...Kxa3!
  • Keys
    • 1.Rb3+!
      • 1...Ka4
        • 2.Rxd3#
      • 1...Kc4
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::B(B)+R(C),DCHECK
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • P(a);XB(A)
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::B(B)+R(C),DCHECK
      • Refutation
        • P(a);
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • R(C);CHECK
    • Vars
      • K(b);P-FLIGHT::B(A)+R(C),XP(a)
      • K(b);P-FLIGHT::R1(C)
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