MESON Chess Problem Database

Problem Display
PID: 246030 (6Q1/8/8/8/8/6Kp/6p1/R4rk1 w - - 0 1)

Svitek, Miroslav

Kudesnik, 2011

6Q1/8/8/8/8/6Kp/6p1/R4rk1

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Rxb1#
    • 1...Rc1
      • 2.Rxc1#
    • 1...Rd1
      • 2.Rxd1#
    • 1...Re1
      • 2.Rxe1#
  • Tries
    • 1.Kxh3?
      • threat
        • 2.Qxg2#
      • 1...Kh1
        • 2.Qxg2#
      • 1...Kf2!
    • 1.Qa2?
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rb1
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rxd1#
      • 1...Re1
        • 2.Rxe1#
      • 1...h2
        • 2.Qxg2#
      • 1...Kh1!
    • 1.Qd5?
      • 1...Kh1
        • 2.Rxf1#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rxd1#
        • 2.Qxd1#
      • 1...Re1
        • 2.Rxe1#
      • 1...h2
        • 2.Qxg2#
      • 1...Rxa1!
    • 1.Qh8?
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rxd1#
      • 1...Re1
        • 2.Rxe1#
      • 1...h2
        • 2.Qxh2#
      • 1...Kh1!
  • Keys
    • 1.Qa8!
      • 1...Kh1
        • 2.Rxf1#
      • 1...Rxa1
        • 2.Qxa1#
      • 1...Rb1
        • 2.Rxb1#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rxd1#
      • 1...Re1
        • 2.Rxe1#
      • 1...h2
        • 2.Qxg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATEB::R(A),XR(a)
  • Tries
    • Try
      • K(B);P-FLIGHT,P_PINP(c),XP(d)
      • Threat
        • QAR1(C),XP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAB1(C),XP(c)
      • Refutation
        • K(b);N_SPINP(c),N_SPINR(a),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • R(a);N_SPINR(a),OGATE,XR(A)::QAR(C),XR(a)
        • R(a);OGATEB::R(A),XR(a)
        • P(d);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::R(A),XR(a)
        • R(a);OGATEB::R(A),XR(a)
        • P(d);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • Q(C);
      • Vars
        • R(a);N_SPINR(a),OGATE,XR(A)::QAR(C),XR(a)
        • R(a);OGATEB::R(A),XR(a)
        • P(d);OGATE::QAB1(C),XP(d)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(d)
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::R(A),XR(a)
      • R(a);N_SPINR(a),OGATE,XR(A)::QAR(C),XR(a)
      • R(a);OGATEB::R(A),XR(a)
      • P(d);N_GUARD::QAR1(C),XP(c)
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