MESON Chess Problem Database

Problem Display
PID: 204270 (5K1k/7q/8/8/8/8/p7/R6R w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1925

5K1k/7q/8/8/8/8/p7/R6R

#2

3 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh1
      • 2.Rxh1#
    • 1...Qh2
      • 2.Rxh2#
    • 1...Qh3
      • 2.Rxh3#
    • 1...Qh4
      • 2.Rxh4#
    • 1...Qh5
      • 2.Rxh5#
    • 1...Qh6+
      • 2.Rxh6#
  • Tries
    • 1.Rxa2?
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qh2
        • 2.Rhxh2#
        • 2.Raxh2#
      • 1...Qh3
        • 2.Rxh3#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qxh1!
    • 1.Rh2?
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qh3
        • 2.Rxh3#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qxh2!
    • 1.Rh3?
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qxh3!
    • 1.Rh4?
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qxh4!
    • 1.Rh5?
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qxh5!
  • Keys
    • 1.Rag1!
      • threat
        • 2.Rg8#
      • 1...Qh6+
        • 2.Rxh6#
      • 1...Qxh1
        • 2.Rxh1#
      • 1...Qh2
        • 2.Rxh2#
      • 1...Qh3
        • 2.Rxh3#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Qh5
        • 2.Rxh5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_SPINQ(b),OGATE,XR(B)::R(A),XQ(b)
    • Q(b);OGATEB::R(B),XQ(b)
    • Q(b);CHECK,OGATEB::R(B),XQ(b)
  • Tries
    • Try
      • R(A);XP(a)
      • Vars
        • Q(b);CHECK,OGATEB::R(B),XQ(b)
        • Q(b);OGATEB::R(B),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
    • Try
      • R(B);
      • Vars
        • Q(b);CHECK,OGATEB::R(B),XQ(b)
        • Q(b);OGATEB::R(B),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
    • Try
      • R(B);
      • Vars
        • Q(b);CHECK,OGATEB::R(B),XQ(b)
        • Q(b);OGATEB::R(B),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
    • Try
      • R(B);
      • Vars
        • Q(b);CHECK,OGATEB::R(B),XQ(b)
        • Q(b);OGATEB::R(B),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
    • Try
      • R(B);
      • Vars
        • Q(b);CHECK,OGATEB::R(B),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • Q(b);CHECK,OGATEB::R(B),XQ(b)
      • Q(b);N_SPINQ(b),OGATE,XR(B)::R(A),XQ(b)
      • Q(b);OGATEB::R(B),XQ(b)
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