MESON Chess Problem Database

Problem Display
PID: 242024 (8/8/1Q3N2/8/2kp4/3R4/4p3/4K3 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/1Q3N2/8/2kp4/3R4/4p3/4K3

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qb3#
  • Tries
    • 1.Sg4?
      • 1...Kd5
        • 2.Rxd4#
      • 1...Kxd3!
    • 1.Sd7?
      • threat
        • 2.Qb3#
      • 1...Kd5
        • 2.Rxd4#
      • 1...Kxd3!
    • 1.Qb2?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kc5!
    • 1.Qb4+?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kxb4!
    • 1.Qb7?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kc5!
    • 1.Qb8?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kc5!
  • Keys
    • 1.Rb3!
      • 1...d3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT,XR(B)::QAR2(C)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • S(D);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XR(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XR(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XR(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(B);
    • Vars
      • P(c);::QAR1(C)
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