MESON Chess Problem Database

Problem Display
PID: 113364 (8/8/2P2QK1/R3N2p/PppkP3/1p2p1p1/1b1pr3/8 w - - 0 1)

Sobek, Karel

Zemedelske noviny, 1977

8/8/2P2QK1/R3N2p/PppkP3/1p2p1p1/1b1pr3/8

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qh4#
  • Tries
    • 1.Sf3+?
      • 1...Kxe4
        • 2.Qf5#
      • 1...Kd3!
    • 1.Rd5+?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kc3!
    • 1.Qd8+?
      • 1...Kxe4
        • 2.Qh4#
      • 1...Kc3!
    • 1.Qe6?
      • threat
        • 2.Qxc4#
      • 1...Kc3
        • 2.Qxc4#
      • 1...c3
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kxe4!
    • 1.Qf7?
      • threat
        • 2.Qxc4#
      • 1...Kc3
        • 2.Qxc4#
      • 1...c3
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kxe4!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rxc4#
      • 1...Kc3
        • 2.Rxc4#
      • 1...Kxe4
        • 2.Qh4#
      • 1...Kxc5
        • 2.Sd7#
      • 1...c3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(i);OGATEB,P-FLIGHT,XP(B)::QAR(F)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(i);P-FLIGHT,XP(B)::QAB1(F)
      • Refutation
        • K(i);P-FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(i);P-FLIGHT,XP(B)::QAB1(F)
      • Refutation
        • K(i);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(i);OGATEB,P-FLIGHT,XP(B)::QAR(F)
      • Refutation
        • K(i);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR1(F),XP(h)
      • Vars
        • K(i);S_FLIGHT::QAR1(F),XP(h)
      • Refutation
        • K(i);P-FLIGHT,XP(B)
    • Try
      • Q(F);
      • Threat
        • QAR1(F),XP(h)
      • Vars
        • K(i);S_FLIGHT::QAR1(F),XP(h)
      • Refutation
        • K(i);P-FLIGHT,XP(B)
  • Actual
    • R(C);
    • Threat
      • R1(C),XP(h)
    • Vars
      • K(i);P_SPINP(h),S_FLIGHT::R1(C),XP(h)
      • K(i);OGATEB,P-FLIGHT,XP(B)::QAR(F)
      • K(i);S_FLIGHT,XR(C)::S(D)
      • P(h);::R1(C)
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