MESON Chess Problem Database

Problem Display
PID: 99106 (2B4K/2Rpp3/pP1kp2R/2q5/5P2/BnN2pp1/4b3/4Q1r1 w - - 0 1)

Ersek, Tibor

Sakkelet, 1995

2B4K/2Rpp3/pP1kp2R/2q5/5P2/BnN2pp1/4b3/4Q1r1

#2

9 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qe5#
    • 1...Bf1
      • 2.Qe5#
    • 1...Bd3
      • 2.Qe5#
    • 1...Bc4
      • 2.Qe5#
    • 1...Bb5
      • 2.Qe5#
    • 1...Sa1
      • 2.Bxc5#
    • 1...Sc1
      • 2.Bxc5#
    • 1...Sd2
      • 2.Bxc5#
    • 1...Sd4
      • 2.Bxc5#
    • 1...Sa5
      • 2.Bxc5#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Rxe6#
      • 1...Bc4
        • 2.Qe5#
      • 1...Sd4
        • 2.Bxc5#
      • 1...Rh1!
    • 1.Rh5?
      • threat
        • 2.Se4#
      • 1...Bd3
        • 2.Qe5#
      • 1...Sd2
        • 2.Bxc5#
      • 1...e5!
    • 1.Rxc5?
      • threat
        • 2.Se4#
      • 1...Bd3
        • 2.Qe5#
      • 1...Sd2
        • 2.Rc4#
        • 2.Rc7#
      • 1...Sxc5!
    • 1.Rc6+?
      • 1...dxc6
        • 2.Rxe6#
      • 1...Kxc6!
    • 1.Qd2+?
      • 1...Sxd2
        • 2.Bxc5#
      • 1...Sd4
        • 2.Bxc5#
        • 2.Qxd4#
      • 1...Bd3!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Se4#
      • 1...Bd3
        • 2.Qe5#
      • 1...Sd2
        • 2.Bxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • B(b);OGATE::QAB1(A)
    • S(c);N_GUARD::B(B),XQ(f)
  • Tries
    • Try
      • B(H);XP(j)
      • Threat
        • R1(F),XP(i)
      • Vars
        • B(b);OGATE::QAB1(A)
        • S(c);N_GUARD::B(B),XQ(f)
      • Refutation
        • R(a);P_PINR(F)
    • Try
      • R(F);N_PINP(i)
      • Threat
        • S(C)
      • Vars
        • B(b);OGATE::QAB1(A)
        • S(c);N_GUARD::B(B),XQ(f)
      • Refutation
        • P(i);
    • Try
      • R(G);XQ(f)
      • Threat
        • S(C)
      • Vars
        • B(b);OGATE::QAB1(A)
      • Refutation
        • S(c);P_SPINS(c),XR(G)
    • Try
      • R(G);CHECK
      • Vars
        • P(j);SBLOCK,XR(G)::R1(F),XP(i)
      • Refutation
        • K(h);N_SPINQ(f),P-FLIGHT,XR(G)
    • Try
      • Q(A);CHECK
      • Vars
        • S(c);XQ(A)::B(B),XQ(f)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • B(H);
    • Threat
      • S(C)
    • Vars
      • B(b);OGATE::QAB1(A)
      • S(c);N_GUARD::B(B),XQ(f)
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